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Finding the Fourth Proportional to 462.03, 693.66 and 267.21

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Solution

The fourth proportional to 462.03, 693.66 and 267.21 is: 401.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.03 : 693.66 = 267.21 : x
  2. Step 2: Convert to fraction form
    462.03/693.66 = 267.21/x
  3. Step 3: Cross multiply
    462.03x = 693.66 × 267.21
  4. Step 4: Simplify right side
    462.03x = 185,352.89
  5. Step 5: Solve for x
    x = 185,352.89/462.03
  6. Step 6: Final answer
    x = 401.17

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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.