Home / 278,046.83-417,102.68-100,637.39

Finding the Fourth Proportional to 278,046.83, 417,102.68 and 100,637.39

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Solution

The fourth proportional to 278,046.83, 417,102.68 and 100,637.39 is: 150,967.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,046.83 : 417,102.68 = 100,637.39 : x
  2. Step 2: Convert to fraction form
    278,046.83/417,102.68 = 100,637.39/x
  3. Step 3: Cross multiply
    278,046.83x = 417,102.68 × 100,637.39
  4. Step 4: Simplify right side
    278,046.83x = 41,976,126,371.56
  5. Step 5: Solve for x
    x = 41,976,126,371.56/278,046.83
  6. Step 6: Final answer
    x = 150,967.83

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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.