Home / 220,121.20-329,890.20-195,043.60

Finding the Fourth Proportional to 220,121.20, 329,890.20 and 195,043.60

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Solution

The fourth proportional to 220,121.20, 329,890.20 and 195,043.60 is: 292,307.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,121.20 : 329,890.20 = 195,043.60 : x
  2. Step 2: Convert to fraction form
    220,121.20/329,890.20 = 195,043.60/x
  3. Step 3: Cross multiply
    220,121.20x = 329,890.20 × 195,043.60
  4. Step 4: Simplify right side
    220,121.20x = 64,342,972,212.72
  5. Step 5: Solve for x
    x = 64,342,972,212.72/220,121.20
  6. Step 6: Final answer
    x = 292,307.02

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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.