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Finding the Fourth Proportional to 294.80, 442.02 and 112.12

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Solution

The fourth proportional to 294.80, 442.02 and 112.12 is: 168.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.80 : 442.02 = 112.12 : x
  2. Step 2: Convert to fraction form
    294.80/442.02 = 112.12/x
  3. Step 3: Cross multiply
    294.80x = 442.02 × 112.12
  4. Step 4: Simplify right side
    294.80x = 49,559.28
  5. Step 5: Solve for x
    x = 49,559.28/294.80
  6. Step 6: Final answer
    x = 168.11

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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.