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Finding the Fourth Proportional to 732.21, 1,098.32 and 245.22

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Solution

The fourth proportional to 732.21, 1,098.32 and 245.22 is: 367.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.21 : 1,098.32 = 245.22 : x
  2. Step 2: Convert to fraction form
    732.21/1,098.32 = 245.22/x
  3. Step 3: Cross multiply
    732.21x = 1,098.32 × 245.22
  4. Step 4: Simplify right side
    732.21x = 269,330.03
  5. Step 5: Solve for x
    x = 269,330.03/732.21
  6. Step 6: Final answer
    x = 367.83

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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.