Home / 631,314.70-946,972.05-157,999.30

Finding the Fourth Proportional to 631,314.70, 946,972.05 and 157,999.30

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Solution

The fourth proportional to 631,314.70, 946,972.05 and 157,999.30 is: 236,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,314.70 : 946,972.05 = 157,999.30 : x
  2. Step 2: Convert to fraction form
    631,314.70/946,972.05 = 157,999.30/x
  3. Step 3: Cross multiply
    631,314.70x = 946,972.05 × 157,999.30
  4. Step 4: Simplify right side
    631,314.70x = 149,620,921,019.57
  5. Step 5: Solve for x
    x = 149,620,921,019.57/631,314.70
  6. Step 6: Final answer
    x = 236,998.95

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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.