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Finding the Fourth Proportional to 264,114.60, 396,168.30 and 86,627.40

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Solution

The fourth proportional to 264,114.60, 396,168.30 and 86,627.40 is: 129,939.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,114.60 : 396,168.30 = 86,627.40 : x
  2. Step 2: Convert to fraction form
    264,114.60/396,168.30 = 86,627.40/x
  3. Step 3: Cross multiply
    264,114.60x = 396,168.30 × 86,627.40
  4. Step 4: Simplify right side
    264,114.60x = 34,319,029,791.42
  5. Step 5: Solve for x
    x = 34,319,029,791.42/264,114.60
  6. Step 6: Final answer
    x = 129,939.92

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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.