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Finding the Fourth Proportional to 373,165.38, 514,965.60 and 203,400.72

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Solution

The fourth proportional to 373,165.38, 514,965.60 and 203,400.72 is: 280,691.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,165.38 : 514,965.60 = 203,400.72 : x
  2. Step 2: Convert to fraction form
    373,165.38/514,965.60 = 203,400.72/x
  3. Step 3: Cross multiply
    373,165.38x = 514,965.60 × 203,400.72
  4. Step 4: Simplify right side
    373,165.38x = 104,744,373,815.23
  5. Step 5: Solve for x
    x = 104,744,373,815.23/373,165.38
  6. Step 6: Final answer
    x = 280,691.56

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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.