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Finding the Fourth Proportional to 220,843.90, 304,766.04 and 125,352.20

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Solution

The fourth proportional to 220,843.90, 304,766.04 and 125,352.20 is: 172,986.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,843.90 : 304,766.04 = 125,352.20 : x
  2. Step 2: Convert to fraction form
    220,843.90/304,766.04 = 125,352.20/x
  3. Step 3: Cross multiply
    220,843.90x = 304,766.04 × 125,352.20
  4. Step 4: Simplify right side
    220,843.90x = 38,203,093,599.29
  5. Step 5: Solve for x
    x = 38,203,093,599.29/220,843.90
  6. Step 6: Final answer
    x = 172,986.86

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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.