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Finding the Fourth Proportional to 294.43, 406.28 and 176.42

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Solution

The fourth proportional to 294.43, 406.28 and 176.42 is: 243.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.43 : 406.28 = 176.42 : x
  2. Step 2: Convert to fraction form
    294.43/406.28 = 176.42/x
  3. Step 3: Cross multiply
    294.43x = 406.28 × 176.42
  4. Step 4: Simplify right side
    294.43x = 71,675.92
  5. Step 5: Solve for x
    x = 71,675.92/294.43
  6. Step 6: Final answer
    x = 243.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.