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Finding the Fourth Proportional to 457,447.86, 631,279.53 and 253,502.14

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Solution

The fourth proportional to 457,447.86, 631,279.53 and 253,502.14 is: 349,833.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,447.86 : 631,279.53 = 253,502.14 : x
  2. Step 2: Convert to fraction form
    457,447.86/631,279.53 = 253,502.14/x
  3. Step 3: Cross multiply
    457,447.86x = 631,279.53 × 253,502.14
  4. Step 4: Simplify right side
    457,447.86x = 160,030,710,525.68
  5. Step 5: Solve for x
    x = 160,030,710,525.68/457,447.86
  6. Step 6: Final answer
    x = 349,833.78

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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.