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Finding the Fourth Proportional to 387,562.96, 534,983.04 and 226,470.38

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Solution

The fourth proportional to 387,562.96, 534,983.04 and 226,470.38 is: 312,614.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,562.96 : 534,983.04 = 226,470.38 : x
  2. Step 2: Convert to fraction form
    387,562.96/534,983.04 = 226,470.38/x
  3. Step 3: Cross multiply
    387,562.96x = 534,983.04 × 226,470.38
  4. Step 4: Simplify right side
    387,562.96x = 121,157,812,362.36
  5. Step 5: Solve for x
    x = 121,157,812,362.36/387,562.96
  6. Step 6: Final answer
    x = 312,614.53

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1.5x scale

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.