Home / 278,936.10-418,404.15-166,961.70

Finding the Fourth Proportional to 278,936.10, 418,404.15 and 166,961.70

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Solution

The fourth proportional to 278,936.10, 418,404.15 and 166,961.70 is: 250,442.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,936.10 : 418,404.15 = 166,961.70 : x
  2. Step 2: Convert to fraction form
    278,936.10/418,404.15 = 166,961.70/x
  3. Step 3: Cross multiply
    278,936.10x = 418,404.15 × 166,961.70
  4. Step 4: Simplify right side
    278,936.10x = 69,857,468,171.06
  5. Step 5: Solve for x
    x = 69,857,468,171.06/278,936.10
  6. Step 6: Final answer
    x = 250,442.55

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1.5x scale

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.