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Finding the Fourth Proportional to 239.42, 358.52 and 174.22

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Solution

The fourth proportional to 239.42, 358.52 and 174.22 is: 260.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.42 : 358.52 = 174.22 : x
  2. Step 2: Convert to fraction form
    239.42/358.52 = 174.22/x
  3. Step 3: Cross multiply
    239.42x = 358.52 × 174.22
  4. Step 4: Simplify right side
    239.42x = 62,461.35
  5. Step 5: Solve for x
    x = 62,461.35/239.42
  6. Step 6: Final answer
    x = 260.89

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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.