Home / 268,452.20-402,680.72-81,463.70

Finding the Fourth Proportional to 268,452.20, 402,680.72 and 81,463.70

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Solution

The fourth proportional to 268,452.20, 402,680.72 and 81,463.70 is: 122,196.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,452.20 : 402,680.72 = 81,463.70 : x
  2. Step 2: Convert to fraction form
    268,452.20/402,680.72 = 81,463.70/x
  3. Step 3: Cross multiply
    268,452.20x = 402,680.72 × 81,463.70
  4. Step 4: Simplify right side
    268,452.20x = 32,803,861,369.86
  5. Step 5: Solve for x
    x = 32,803,861,369.86/268,452.20
  6. Step 6: Final answer
    x = 122,196.28

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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.