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Finding the Fourth Proportional to 225,651.92, 311,401.80 and 125,059.28

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Solution

The fourth proportional to 225,651.92, 311,401.80 and 125,059.28 is: 172,583.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,651.92 : 311,401.80 = 125,059.28 : x
  2. Step 2: Convert to fraction form
    225,651.92/311,401.80 = 125,059.28/x
  3. Step 3: Cross multiply
    225,651.92x = 311,401.80 × 125,059.28
  4. Step 4: Simplify right side
    225,651.92x = 38,943,684,898.70
  5. Step 5: Solve for x
    x = 38,943,684,898.70/225,651.92
  6. Step 6: Final answer
    x = 172,583.00

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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.