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Finding the Fourth Proportional to 294.68, 442.42 and 158.20

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Solution

The fourth proportional to 294.68, 442.42 and 158.20 is: 237.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.68 : 442.42 = 158.20 : x
  2. Step 2: Convert to fraction form
    294.68/442.42 = 158.20/x
  3. Step 3: Cross multiply
    294.68x = 442.42 × 158.20
  4. Step 4: Simplify right side
    294.68x = 69,990.84
  5. Step 5: Solve for x
    x = 69,990.84/294.68
  6. Step 6: Final answer
    x = 237.51

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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.