Home / 257,444.76-386,162.28-79,947.84

Finding the Fourth Proportional to 257,444.76, 386,162.28 and 79,947.84

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Solution

The fourth proportional to 257,444.76, 386,162.28 and 79,947.84 is: 119,920.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,444.76 : 386,162.28 = 79,947.84 : x
  2. Step 2: Convert to fraction form
    257,444.76/386,162.28 = 79,947.84/x
  3. Step 3: Cross multiply
    257,444.76x = 386,162.28 × 79,947.84
  4. Step 4: Simplify right side
    257,444.76x = 30,872,840,175.48
  5. Step 5: Solve for x
    x = 30,872,840,175.48/257,444.76
  6. Step 6: Final answer
    x = 119,920.25

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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.