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Finding the Fourth Proportional to 220,549.60, 330,168.30 and 131,757.40

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Solution

The fourth proportional to 220,549.60, 330,168.30 and 131,757.40 is: 197,244.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,549.60 : 330,168.30 = 131,757.40 : x
  2. Step 2: Convert to fraction form
    220,549.60/330,168.30 = 131,757.40/x
  3. Step 3: Cross multiply
    220,549.60x = 330,168.30 × 131,757.40
  4. Step 4: Simplify right side
    220,549.60x = 43,502,116,770.42
  5. Step 5: Solve for x
    x = 43,502,116,770.42/220,549.60
  6. Step 6: Final answer
    x = 197,244.14

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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.