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Finding the Fourth Proportional to 225,870.47, 338,836.92 and 76,153.57

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Solution

The fourth proportional to 225,870.47, 338,836.92 and 76,153.57 is: 114,240.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,870.47 : 338,836.92 = 76,153.57 : x
  2. Step 2: Convert to fraction form
    225,870.47/338,836.92 = 76,153.57/x
  3. Step 3: Cross multiply
    225,870.47x = 338,836.92 × 76,153.57
  4. Step 4: Simplify right side
    225,870.47x = 25,803,640,401.50
  5. Step 5: Solve for x
    x = 25,803,640,401.50/225,870.47
  6. Step 6: Final answer
    x = 114,240.87

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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.