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Finding the Fourth Proportional to 160,291.12, 240,458.56 and 66,775

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Solution

The fourth proportional to 160,291.12, 240,458.56 and 66,775 is: 100,171.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,291.12 : 240,458.56 = 66,775 : x
  2. Step 2: Convert to fraction form
    160,291.12/240,458.56 = 66,775/x
  3. Step 3: Cross multiply
    160,291.12x = 240,458.56 × 66,775
  4. Step 4: Simplify right side
    160,291.12x = 16,056,620,344
  5. Step 5: Solve for x
    x = 16,056,620,344/160,291.12
  6. Step 6: Final answer
    x = 100,171.61

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1.5x scale

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.