Home / 278,747.23-418,263.86-136,589.83

Finding the Fourth Proportional to 278,747.23, 418,263.86 and 136,589.83

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Solution

The fourth proportional to 278,747.23, 418,263.86 and 136,589.83 is: 204,954.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,747.23 : 418,263.86 = 136,589.83 : x
  2. Step 2: Convert to fraction form
    278,747.23/418,263.86 = 136,589.83/x
  3. Step 3: Cross multiply
    278,747.23x = 418,263.86 × 136,589.83
  4. Step 4: Simplify right side
    278,747.23x = 57,130,589,532.54
  5. Step 5: Solve for x
    x = 57,130,589,532.54/278,747.23
  6. Step 6: Final answer
    x = 204,954.82

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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.