Home / 278,212.30-417,361.88-88,715.14

Finding the Fourth Proportional to 278,212.30, 417,361.88 and 88,715.14

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Solution

The fourth proportional to 278,212.30, 417,361.88 and 88,715.14 is: 133,086.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,212.30 : 417,361.88 = 88,715.14 : x
  2. Step 2: Convert to fraction form
    278,212.30/417,361.88 = 88,715.14/x
  3. Step 3: Cross multiply
    278,212.30x = 417,361.88 × 88,715.14
  4. Step 4: Simplify right side
    278,212.30x = 37,026,317,614.86
  5. Step 5: Solve for x
    x = 37,026,317,614.86/278,212.30
  6. Step 6: Final answer
    x = 133,086.56

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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.