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Finding the Fourth Proportional to 201,765.60, 302,691.60 and 61,538.40

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Solution

The fourth proportional to 201,765.60, 302,691.60 and 61,538.40 is: 92,320.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,765.60 : 302,691.60 = 61,538.40 : x
  2. Step 2: Convert to fraction form
    201,765.60/302,691.60 = 61,538.40/x
  3. Step 3: Cross multiply
    201,765.60x = 302,691.60 × 61,538.40
  4. Step 4: Simplify right side
    201,765.60x = 18,627,156,757.44
  5. Step 5: Solve for x
    x = 18,627,156,757.44/201,765.60
  6. Step 6: Final answer
    x = 92,320.78

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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.