Home / 284,131.26-392,089.68-156,805.20

Finding the Fourth Proportional to 284,131.26, 392,089.68 and 156,805.20

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Solution

The fourth proportional to 284,131.26, 392,089.68 and 156,805.20 is: 216,384.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,131.26 : 392,089.68 = 156,805.20 : x
  2. Step 2: Convert to fraction form
    284,131.26/392,089.68 = 156,805.20/x
  3. Step 3: Cross multiply
    284,131.26x = 392,089.68 × 156,805.20
  4. Step 4: Simplify right side
    284,131.26x = 61,481,700,690.34
  5. Step 5: Solve for x
    x = 61,481,700,690.34/284,131.26
  6. Step 6: Final answer
    x = 216,384.85

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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.