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Finding the Fourth Proportional to 220,940.87, 304,900.45 and 125,449.61

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Solution

The fourth proportional to 220,940.87, 304,900.45 and 125,449.61 is: 173,121.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,940.87 : 304,900.45 = 125,449.61 : x
  2. Step 2: Convert to fraction form
    220,940.87/304,900.45 = 125,449.61/x
  3. Step 3: Cross multiply
    220,940.87x = 304,900.45 × 125,449.61
  4. Step 4: Simplify right side
    220,940.87x = 38,249,640,703.20
  5. Step 5: Solve for x
    x = 38,249,640,703.20/220,940.87
  6. Step 6: Final answer
    x = 173,121.62

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1.5x scale

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.