Home / 278,853.24-418,217.04-79,169.52

Finding the Fourth Proportional to 278,853.24, 418,217.04 and 79,169.52

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Solution

The fourth proportional to 278,853.24, 418,217.04 and 79,169.52 is: 118,736.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,853.24 : 418,217.04 = 79,169.52 : x
  2. Step 2: Convert to fraction form
    278,853.24/418,217.04 = 79,169.52/x
  3. Step 3: Cross multiply
    278,853.24x = 418,217.04 × 79,169.52
  4. Step 4: Simplify right side
    278,853.24x = 33,110,042,312.62
  5. Step 5: Solve for x
    x = 33,110,042,312.62/278,853.24
  6. Step 6: Final answer
    x = 118,736.44

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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.