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Finding the Fourth Proportional to 278,550.93, 384,404.51 and 151,226.52

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Solution

The fourth proportional to 278,550.93, 384,404.51 and 151,226.52 is: 208,694.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,550.93 : 384,404.51 = 151,226.52 : x
  2. Step 2: Convert to fraction form
    278,550.93/384,404.51 = 151,226.52/x
  3. Step 3: Cross multiply
    278,550.93x = 384,404.51 × 151,226.52
  4. Step 4: Simplify right side
    278,550.93x = 58,132,156,319.61
  5. Step 5: Solve for x
    x = 58,132,156,319.61/278,550.93
  6. Step 6: Final answer
    x = 208,694.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.