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Finding the Fourth Proportional to 732.61, 1,098.91 and 368.11

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Solution

The fourth proportional to 732.61, 1,098.91 and 368.11 is: 552.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.61 : 1,098.91 = 368.11 : x
  2. Step 2: Convert to fraction form
    732.61/1,098.91 = 368.11/x
  3. Step 3: Cross multiply
    732.61x = 1,098.91 × 368.11
  4. Step 4: Simplify right side
    732.61x = 404,514.27
  5. Step 5: Solve for x
    x = 404,514.27/732.61
  6. Step 6: Final answer
    x = 552.16

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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.