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Finding the Fourth Proportional to 667.35, 1,001.33 and 301.95

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Solution

The fourth proportional to 667.35, 1,001.33 and 301.95 is: 453.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.35 : 1,001.33 = 301.95 : x
  2. Step 2: Convert to fraction form
    667.35/1,001.33 = 301.95/x
  3. Step 3: Cross multiply
    667.35x = 1,001.33 × 301.95
  4. Step 4: Simplify right side
    667.35x = 302,350.08
  5. Step 5: Solve for x
    x = 302,350.08/667.35
  6. Step 6: Final answer
    x = 453.06

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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.