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Finding the Fourth Proportional to 457,781.94, 631,671.48 and 253,834.35

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Solution

The fourth proportional to 457,781.94, 631,671.48 and 253,834.35 is: 350,253.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,781.94 : 631,671.48 = 253,834.35 : x
  2. Step 2: Convert to fraction form
    457,781.94/631,671.48 = 253,834.35/x
  3. Step 3: Cross multiply
    457,781.94x = 631,671.48 × 253,834.35
  4. Step 4: Simplify right side
    457,781.94x = 160,339,916,380.98
  5. Step 5: Solve for x
    x = 160,339,916,380.98/457,781.94
  6. Step 6: Final answer
    x = 350,253.91

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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.