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Finding the Fourth Proportional to 315,060.30, 472,400.10 and 125,549.82

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Solution

The fourth proportional to 315,060.30, 472,400.10 and 125,549.82 is: 188,248.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,060.30 : 472,400.10 = 125,549.82 : x
  2. Step 2: Convert to fraction form
    315,060.30/472,400.10 = 125,549.82/x
  3. Step 3: Cross multiply
    315,060.30x = 472,400.10 × 125,549.82
  4. Step 4: Simplify right side
    315,060.30x = 59,309,747,522.98
  5. Step 5: Solve for x
    x = 59,309,747,522.98/315,060.30
  6. Step 6: Final answer
    x = 188,248.88

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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.