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Finding the Fourth Proportional to 667.33, 1,001.06 and 173.74

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Solution

The fourth proportional to 667.33, 1,001.06 and 173.74 is: 260.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.33 : 1,001.06 = 173.74 : x
  2. Step 2: Convert to fraction form
    667.33/1,001.06 = 173.74/x
  3. Step 3: Cross multiply
    667.33x = 1,001.06 × 173.74
  4. Step 4: Simplify right side
    667.33x = 173,918.29
  5. Step 5: Solve for x
    x = 173,918.29/667.33
  6. Step 6: Final answer
    x = 260.62

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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.