Home / 225,813.19-338,720.38-76,158.61

Finding the Fourth Proportional to 225,813.19, 338,720.38 and 76,158.61

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Solution

The fourth proportional to 225,813.19, 338,720.38 and 76,158.61 is: 114,238.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,813.19 : 338,720.38 = 76,158.61 : x
  2. Step 2: Convert to fraction form
    225,813.19/338,720.38 = 76,158.61/x
  3. Step 3: Cross multiply
    225,813.19x = 338,720.38 × 76,158.61
  4. Step 4: Simplify right side
    225,813.19x = 25,796,473,319.47
  5. Step 5: Solve for x
    x = 25,796,473,319.47/225,813.19
  6. Step 6: Final answer
    x = 114,238.12

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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.