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Finding the Fourth Proportional to 486,767.65, 730,151.97 and 126,938.23

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Solution

The fourth proportional to 486,767.65, 730,151.97 and 126,938.23 is: 190,407.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,767.65 : 730,151.97 = 126,938.23 : x
  2. Step 2: Convert to fraction form
    486,767.65/730,151.97 = 126,938.23/x
  3. Step 3: Cross multiply
    486,767.65x = 730,151.97 × 126,938.23
  4. Step 4: Simplify right side
    486,767.65x = 92,684,196,088.67
  5. Step 5: Solve for x
    x = 92,684,196,088.67/486,767.65
  6. Step 6: Final answer
    x = 190,407.47

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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.