Home / 278,449.12-417,673.68-68,084.56

Finding the Fourth Proportional to 278,449.12, 417,673.68 and 68,084.56

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Solution

The fourth proportional to 278,449.12, 417,673.68 and 68,084.56 is: 102,126.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,449.12 : 417,673.68 = 68,084.56 : x
  2. Step 2: Convert to fraction form
    278,449.12/417,673.68 = 68,084.56/x
  3. Step 3: Cross multiply
    278,449.12x = 417,673.68 × 68,084.56
  4. Step 4: Simplify right side
    278,449.12x = 28,437,128,726.38
  5. Step 5: Solve for x
    x = 28,437,128,726.38/278,449.12
  6. Step 6: Final answer
    x = 102,126.84

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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.