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Finding the Fourth Proportional to 225,425.82, 311,083.83 and 124,821.66

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Solution

The fourth proportional to 225,425.82, 311,083.83 and 124,821.66 is: 172,251.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,425.82 : 311,083.83 = 124,821.66 : x
  2. Step 2: Convert to fraction form
    225,425.82/311,083.83 = 124,821.66/x
  3. Step 3: Cross multiply
    225,425.82x = 311,083.83 × 124,821.66
  4. Step 4: Simplify right side
    225,425.82x = 38,830,000,059.76
  5. Step 5: Solve for x
    x = 38,830,000,059.76/225,425.82
  6. Step 6: Final answer
    x = 172,251.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.