Home / 631,430.29-947,153.54-210,706.17

Finding the Fourth Proportional to 631,430.29, 947,153.54 and 210,706.17

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Solution

The fourth proportional to 631,430.29, 947,153.54 and 210,706.17 is: 316,061.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,430.29 : 947,153.54 = 210,706.17 : x
  2. Step 2: Convert to fraction form
    631,430.29/947,153.54 = 210,706.17/x
  3. Step 3: Cross multiply
    631,430.29x = 947,153.54 × 210,706.17
  4. Step 4: Simplify right side
    631,430.29x = 199,571,094,815.34
  5. Step 5: Solve for x
    x = 199,571,094,815.34/631,430.29
  6. Step 6: Final answer
    x = 316,061.96

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.