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Finding the Fourth Proportional to 194,487.20, 291,615.60 and 101,175.20

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Solution

The fourth proportional to 194,487.20, 291,615.60 and 101,175.20 is: 151,702.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,487.20 : 291,615.60 = 101,175.20 : x
  2. Step 2: Convert to fraction form
    194,487.20/291,615.60 = 101,175.20/x
  3. Step 3: Cross multiply
    194,487.20x = 291,615.60 × 101,175.20
  4. Step 4: Simplify right side
    194,487.20x = 29,504,266,653.12
  5. Step 5: Solve for x
    x = 29,504,266,653.12/194,487.20
  6. Step 6: Final answer
    x = 151,702.87

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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.