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Finding the Fourth Proportional to 278,136.68, 417,067.01 and 88,572.34

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Solution

The fourth proportional to 278,136.68, 417,067.01 and 88,572.34 is: 132,814.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,136.68 : 417,067.01 = 88,572.34 : x
  2. Step 2: Convert to fraction form
    278,136.68/417,067.01 = 88,572.34/x
  3. Step 3: Cross multiply
    278,136.68x = 417,067.01 × 88,572.34
  4. Step 4: Simplify right side
    278,136.68x = 36,940,601,012.50
  5. Step 5: Solve for x
    x = 36,940,601,012.50/278,136.68
  6. Step 6: Final answer
    x = 132,814.56

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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.