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Finding the Fourth Proportional to 610,112.88, 915,188.58 and 210,776.40

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Solution

The fourth proportional to 610,112.88, 915,188.58 and 210,776.40 is: 316,171.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,112.88 : 915,188.58 = 210,776.40 : x
  2. Step 2: Convert to fraction form
    610,112.88/915,188.58 = 210,776.40/x
  3. Step 3: Cross multiply
    610,112.88x = 915,188.58 × 210,776.40
  4. Step 4: Simplify right side
    610,112.88x = 192,900,154,213.51
  5. Step 5: Solve for x
    x = 192,900,154,213.51/610,112.88
  6. Step 6: Final answer
    x = 316,171.25

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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.