Home / 278,901.27-418,381.62-89,293.83

Finding the Fourth Proportional to 278,901.27, 418,381.62 and 89,293.83

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Solution

The fourth proportional to 278,901.27, 418,381.62 and 89,293.83 is: 133,950.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,901.27 : 418,381.62 = 89,293.83 : x
  2. Step 2: Convert to fraction form
    278,901.27/418,381.62 = 89,293.83/x
  3. Step 3: Cross multiply
    278,901.27x = 418,381.62 × 89,293.83
  4. Step 4: Simplify right side
    278,901.27x = 37,358,897,251.40
  5. Step 5: Solve for x
    x = 37,358,897,251.40/278,901.27
  6. Step 6: Final answer
    x = 133,950.26

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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.