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Finding the Fourth Proportional to 457,881.86, 631,909.35 and 253,952.21

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Solution

The fourth proportional to 457,881.86, 631,909.35 and 253,952.21 is: 350,472.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,881.86 : 631,909.35 = 253,952.21 : x
  2. Step 2: Convert to fraction form
    457,881.86/631,909.35 = 253,952.21/x
  3. Step 3: Cross multiply
    457,881.86x = 631,909.35 × 253,952.21
  4. Step 4: Simplify right side
    457,881.86x = 160,474,777,531.94
  5. Step 5: Solve for x
    x = 160,474,777,531.94/457,881.86
  6. Step 6: Final answer
    x = 350,472.01

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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.