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Finding the Fourth Proportional to 667.52, 1,001.27 and 302.06

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Solution

The fourth proportional to 667.52, 1,001.27 and 302.06 is: 453.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.52 : 1,001.27 = 302.06 : x
  2. Step 2: Convert to fraction form
    667.52/1,001.27 = 302.06/x
  3. Step 3: Cross multiply
    667.52x = 1,001.27 × 302.06
  4. Step 4: Simplify right side
    667.52x = 302,438.61
  5. Step 5: Solve for x
    x = 302,438.61/667.52
  6. Step 6: Final answer
    x = 453.08

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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.