Home / 278,085.72-383,761.25-163,369.14

Finding the Fourth Proportional to 278,085.72, 383,761.25 and 163,369.14

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Solution

The fourth proportional to 278,085.72, 383,761.25 and 163,369.14 is: 225,451.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,085.72 : 383,761.25 = 163,369.14 : x
  2. Step 2: Convert to fraction form
    278,085.72/383,761.25 = 163,369.14/x
  3. Step 3: Cross multiply
    278,085.72x = 383,761.25 × 163,369.14
  4. Step 4: Simplify right side
    278,085.72x = 62,694,744,560.98
  5. Step 5: Solve for x
    x = 62,694,744,560.98/278,085.72
  6. Step 6: Final answer
    x = 225,451.15

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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.