Home / 284,081.26-392,020.68-156,755.20

Finding the Fourth Proportional to 284,081.26, 392,020.68 and 156,755.20

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Solution

The fourth proportional to 284,081.26, 392,020.68 and 156,755.20 is: 216,315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,081.26 : 392,020.68 = 156,755.20 : x
  2. Step 2: Convert to fraction form
    284,081.26/392,020.68 = 156,755.20/x
  3. Step 3: Cross multiply
    284,081.26x = 392,020.68 × 156,755.20
  4. Step 4: Simplify right side
    284,081.26x = 61,451,280,097.54
  5. Step 5: Solve for x
    x = 61,451,280,097.54/284,081.26
  6. Step 6: Final answer
    x = 216,315.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.