Home / 278,327.16-417,489.62-100,792.71

Finding the Fourth Proportional to 278,327.16, 417,489.62 and 100,792.71

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Solution

The fourth proportional to 278,327.16, 417,489.62 and 100,792.71 is: 151,188.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,327.16 : 417,489.62 = 100,792.71 : x
  2. Step 2: Convert to fraction form
    278,327.16/417,489.62 = 100,792.71/x
  3. Step 3: Cross multiply
    278,327.16x = 417,489.62 × 100,792.71
  4. Step 4: Simplify right side
    278,327.16x = 42,079,909,692.71
  5. Step 5: Solve for x
    x = 42,079,909,692.71/278,327.16
  6. Step 6: Final answer
    x = 151,188.66

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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.