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Finding the Fourth Proportional to 387,432.88, 534,632.88 and 226,333.60

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Solution

The fourth proportional to 387,432.88, 534,632.88 and 226,333.60 is: 312,326.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,432.88 : 534,632.88 = 226,333.60 : x
  2. Step 2: Convert to fraction form
    387,432.88/534,632.88 = 226,333.60/x
  3. Step 3: Cross multiply
    387,432.88x = 534,632.88 × 226,333.60
  4. Step 4: Simplify right side
    387,432.88x = 121,005,384,408.77
  5. Step 5: Solve for x
    x = 121,005,384,408.77/387,432.88
  6. Step 6: Final answer
    x = 312,326.06

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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.