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Finding the Fourth Proportional to 372,893.13, 514,589.85 and 203,127.30

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Solution

The fourth proportional to 372,893.13, 514,589.85 and 203,127.30 is: 280,314.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,893.13 : 514,589.85 = 203,127.30 : x
  2. Step 2: Convert to fraction form
    372,893.13/514,589.85 = 203,127.30/x
  3. Step 3: Cross multiply
    372,893.13x = 514,589.85 × 203,127.30
  4. Step 4: Simplify right side
    372,893.13x = 104,527,246,837.91
  5. Step 5: Solve for x
    x = 104,527,246,837.91/372,893.13
  6. Step 6: Final answer
    x = 280,314.22

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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.