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Finding the Fourth Proportional to 387,204.95, 580,676.43 and 147,261.86

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Solution

The fourth proportional to 387,204.95, 580,676.43 and 147,261.86 is: 220,842.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,204.95 : 580,676.43 = 147,261.86 : x
  2. Step 2: Convert to fraction form
    387,204.95/580,676.43 = 147,261.86/x
  3. Step 3: Cross multiply
    387,204.95x = 580,676.43 × 147,261.86
  4. Step 4: Simplify right side
    387,204.95x = 85,511,491,139.96
  5. Step 5: Solve for x
    x = 85,511,491,139.96/387,204.95
  6. Step 6: Final answer
    x = 220,842.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.