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Finding the Fourth Proportional to 239.18, 358.16 and 167.09

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Solution

The fourth proportional to 239.18, 358.16 and 167.09 is: 250.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.18 : 358.16 = 167.09 : x
  2. Step 2: Convert to fraction form
    239.18/358.16 = 167.09/x
  3. Step 3: Cross multiply
    239.18x = 358.16 × 167.09
  4. Step 4: Simplify right side
    239.18x = 59,842.33
  5. Step 5: Solve for x
    x = 59,842.33/239.18
  6. Step 6: Final answer
    x = 250.20

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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.