Home / 278,824.28-418,001.32-120,933.88

Finding the Fourth Proportional to 278,824.28, 418,001.32 and 120,933.88

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Solution

The fourth proportional to 278,824.28, 418,001.32 and 120,933.88 is: 181,298.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,824.28 : 418,001.32 = 120,933.88 : x
  2. Step 2: Convert to fraction form
    278,824.28/418,001.32 = 120,933.88/x
  3. Step 3: Cross multiply
    278,824.28x = 418,001.32 × 120,933.88
  4. Step 4: Simplify right side
    278,824.28x = 50,550,521,472.72
  5. Step 5: Solve for x
    x = 50,550,521,472.72/278,824.28
  6. Step 6: Final answer
    x = 181,298.85

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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.