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Finding the Fourth Proportional to 447,572.61, 617,702.72 and 251,371.26

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Solution

The fourth proportional to 447,572.61, 617,702.72 and 251,371.26 is: 346,921.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,572.61 : 617,702.72 = 251,371.26 : x
  2. Step 2: Convert to fraction form
    447,572.61/617,702.72 = 251,371.26/x
  3. Step 3: Cross multiply
    447,572.61x = 617,702.72 × 251,371.26
  4. Step 4: Simplify right side
    447,572.61x = 155,272,709,774.97
  5. Step 5: Solve for x
    x = 155,272,709,774.97/447,572.61
  6. Step 6: Final answer
    x = 346,921.83

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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.