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Finding the Fourth Proportional to 387,937.55, 535,273.59 and 226,761.41

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Solution

The fourth proportional to 387,937.55, 535,273.59 and 226,761.41 is: 312,883.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,937.55 : 535,273.59 = 226,761.41 : x
  2. Step 2: Convert to fraction form
    387,937.55/535,273.59 = 226,761.41/x
  3. Step 3: Cross multiply
    387,937.55x = 535,273.59 × 226,761.41
  4. Step 4: Simplify right side
    387,937.55x = 121,379,395,342.35
  5. Step 5: Solve for x
    x = 121,379,395,342.35/387,937.55
  6. Step 6: Final answer
    x = 312,883.86

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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.