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Finding the Fourth Proportional to 457,881.75, 631,876.82 and 253,963.89

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Solution

The fourth proportional to 457,881.75, 631,876.82 and 253,963.89 is: 350,470.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,881.75 : 631,876.82 = 253,963.89 : x
  2. Step 2: Convert to fraction form
    457,881.75/631,876.82 = 253,963.89/x
  3. Step 3: Cross multiply
    457,881.75x = 631,876.82 × 253,963.89
  4. Step 4: Simplify right side
    457,881.75x = 160,473,893,938.21
  5. Step 5: Solve for x
    x = 160,473,893,938.21/457,881.75
  6. Step 6: Final answer
    x = 350,470.17

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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.