Home / 278,489.20-417,624.83-98,505.07

Finding the Fourth Proportional to 278,489.20, 417,624.83 and 98,505.07

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Solution

The fourth proportional to 278,489.20, 417,624.83 and 98,505.07 is: 147,719.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,489.20 : 417,624.83 = 98,505.07 : x
  2. Step 2: Convert to fraction form
    278,489.20/417,624.83 = 98,505.07/x
  3. Step 3: Cross multiply
    278,489.20x = 417,624.83 × 98,505.07
  4. Step 4: Simplify right side
    278,489.20x = 41,138,163,664.42
  5. Step 5: Solve for x
    x = 41,138,163,664.42/278,489.20
  6. Step 6: Final answer
    x = 147,719.06

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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.