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Finding the Fourth Proportional to 274,454.56, 378,739.15 and 151,952.39

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Solution

The fourth proportional to 274,454.56, 378,739.15 and 151,952.39 is: 209,689.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,454.56 : 378,739.15 = 151,952.39 : x
  2. Step 2: Convert to fraction form
    274,454.56/378,739.15 = 151,952.39/x
  3. Step 3: Cross multiply
    274,454.56x = 378,739.15 × 151,952.39
  4. Step 4: Simplify right side
    274,454.56x = 57,550,318,885.90
  5. Step 5: Solve for x
    x = 57,550,318,885.90/274,454.56
  6. Step 6: Final answer
    x = 209,689.79

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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.