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Finding the Fourth Proportional to 667.46, 1,001.08 and 180.52

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Solution

The fourth proportional to 667.46, 1,001.08 and 180.52 is: 270.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.46 : 1,001.08 = 180.52 : x
  2. Step 2: Convert to fraction form
    667.46/1,001.08 = 180.52/x
  3. Step 3: Cross multiply
    667.46x = 1,001.08 × 180.52
  4. Step 4: Simplify right side
    667.46x = 180,714.96
  5. Step 5: Solve for x
    x = 180,714.96/667.46
  6. Step 6: Final answer
    x = 270.75

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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.