Home / 261,638.20-392,457.30-93,348.55

Finding the Fourth Proportional to 261,638.20, 392,457.30 and 93,348.55

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Solution

The fourth proportional to 261,638.20, 392,457.30 and 93,348.55 is: 140,022.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,638.20 : 392,457.30 = 93,348.55 : x
  2. Step 2: Convert to fraction form
    261,638.20/392,457.30 = 93,348.55/x
  3. Step 3: Cross multiply
    261,638.20x = 392,457.30 × 93,348.55
  4. Step 4: Simplify right side
    261,638.20x = 36,635,319,891.92
  5. Step 5: Solve for x
    x = 36,635,319,891.92/261,638.20
  6. Step 6: Final answer
    x = 140,022.83

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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.