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Finding the Fourth Proportional to 272,445.29, 408,700.74 and 90,082.29

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Solution

The fourth proportional to 272,445.29, 408,700.74 and 90,082.29 is: 135,134.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,445.29 : 408,700.74 = 90,082.29 : x
  2. Step 2: Convert to fraction form
    272,445.29/408,700.74 = 90,082.29/x
  3. Step 3: Cross multiply
    272,445.29x = 408,700.74 × 90,082.29
  4. Step 4: Simplify right side
    272,445.29x = 36,816,698,583.89
  5. Step 5: Solve for x
    x = 36,816,698,583.89/272,445.29
  6. Step 6: Final answer
    x = 135,134.28

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1.5x scale

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.