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Finding the Fourth Proportional to 439,951.48, 607,129.50 and 238,747.48

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Solution

The fourth proportional to 439,951.48, 607,129.50 and 238,747.48 is: 329,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,951.48 : 607,129.50 = 238,747.48 : x
  2. Step 2: Convert to fraction form
    439,951.48/607,129.50 = 238,747.48/x
  3. Step 3: Cross multiply
    439,951.48x = 607,129.50 × 238,747.48
  4. Step 4: Simplify right side
    439,951.48x = 144,950,638,158.66
  5. Step 5: Solve for x
    x = 144,950,638,158.66/439,951.48
  6. Step 6: Final answer
    x = 329,469.60

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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.