Home / 278,239.10-417,392.07-98,287.57

Finding the Fourth Proportional to 278,239.10, 417,392.07 and 98,287.57

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Solution

The fourth proportional to 278,239.10, 417,392.07 and 98,287.57 is: 147,443.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,239.10 : 417,392.07 = 98,287.57 : x
  2. Step 2: Convert to fraction form
    278,239.10/417,392.07 = 98,287.57/x
  3. Step 3: Cross multiply
    278,239.10x = 417,392.07 × 98,287.57
  4. Step 4: Simplify right side
    278,239.10x = 41,024,449,719.17
  5. Step 5: Solve for x
    x = 41,024,449,719.17/278,239.10
  6. Step 6: Final answer
    x = 147,443.15

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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.