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Finding the Fourth Proportional to 886.34, 1,329.42 and 366.23

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Solution

The fourth proportional to 886.34, 1,329.42 and 366.23 is: 549.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    886.34 : 1,329.42 = 366.23 : x
  2. Step 2: Convert to fraction form
    886.34/1,329.42 = 366.23/x
  3. Step 3: Cross multiply
    886.34x = 1,329.42 × 366.23
  4. Step 4: Simplify right side
    886.34x = 486,873.49
  5. Step 5: Solve for x
    x = 486,873.49/886.34
  6. Step 6: Final answer
    x = 549.31

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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.