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Finding the Fourth Proportional to 220,151.80, 329,838.90 and 136,948.60

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Solution

The fourth proportional to 220,151.80, 329,838.90 and 136,948.60 is: 205,181.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,151.80 : 329,838.90 = 136,948.60 : x
  2. Step 2: Convert to fraction form
    220,151.80/329,838.90 = 136,948.60/x
  3. Step 3: Cross multiply
    220,151.80x = 329,838.90 × 136,948.60
  4. Step 4: Simplify right side
    220,151.80x = 45,170,975,580.54
  5. Step 5: Solve for x
    x = 45,170,975,580.54/220,151.80
  6. Step 6: Final answer
    x = 205,181.04

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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.