Home / 268,134.20-402,195.15-134,978.70

Finding the Fourth Proportional to 268,134.20, 402,195.15 and 134,978.70

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Solution

The fourth proportional to 268,134.20, 402,195.15 and 134,978.70 is: 202,464.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,134.20 : 402,195.15 = 134,978.70 : x
  2. Step 2: Convert to fraction form
    268,134.20/402,195.15 = 134,978.70/x
  3. Step 3: Cross multiply
    268,134.20x = 402,195.15 × 134,978.70
  4. Step 4: Simplify right side
    268,134.20x = 54,287,779,621.91
  5. Step 5: Solve for x
    x = 54,287,779,621.91/268,134.20
  6. Step 6: Final answer
    x = 202,464.96

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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.