Home / 278,540.16-418,105.44-173,433.12

Finding the Fourth Proportional to 278,540.16, 418,105.44 and 173,433.12

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Solution

The fourth proportional to 278,540.16, 418,105.44 and 173,433.12 is: 260,333.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,540.16 : 418,105.44 = 173,433.12 : x
  2. Step 2: Convert to fraction form
    278,540.16/418,105.44 = 173,433.12/x
  3. Step 3: Cross multiply
    278,540.16x = 418,105.44 × 173,433.12
  4. Step 4: Simplify right side
    278,540.16x = 72,513,330,948.17
  5. Step 5: Solve for x
    x = 72,513,330,948.17/278,540.16
  6. Step 6: Final answer
    x = 260,333.49

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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.