Home / 278,767.14-418,133.76-98,861.46

Finding the Fourth Proportional to 278,767.14, 418,133.76 and 98,861.46

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Solution

The fourth proportional to 278,767.14, 418,133.76 and 98,861.46 is: 148,286.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,767.14 : 418,133.76 = 98,861.46 : x
  2. Step 2: Convert to fraction form
    278,767.14/418,133.76 = 98,861.46/x
  3. Step 3: Cross multiply
    278,767.14x = 418,133.76 × 98,861.46
  4. Step 4: Simplify right side
    278,767.14x = 41,337,313,988.89
  5. Step 5: Solve for x
    x = 41,337,313,988.89/278,767.14
  6. Step 6: Final answer
    x = 148,286.18

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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.