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Finding the Fourth Proportional to 508,112.29, 762,168.71 and 129,061.45

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Solution

The fourth proportional to 508,112.29, 762,168.71 and 129,061.45 is: 193,592.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,112.29 : 762,168.71 = 129,061.45 : x
  2. Step 2: Convert to fraction form
    508,112.29/762,168.71 = 129,061.45/x
  3. Step 3: Cross multiply
    508,112.29x = 762,168.71 × 129,061.45
  4. Step 4: Simplify right side
    508,112.29x = 98,366,598,857.23
  5. Step 5: Solve for x
    x = 98,366,598,857.23/508,112.29
  6. Step 6: Final answer
    x = 193,592.24

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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.