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Finding the Fourth Proportional to 251.04, 374.51 and 239.43

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Solution

The fourth proportional to 251.04, 374.51 and 239.43 is: 357.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.04 : 374.51 = 239.43 : x
  2. Step 2: Convert to fraction form
    251.04/374.51 = 239.43/x
  3. Step 3: Cross multiply
    251.04x = 374.51 × 239.43
  4. Step 4: Simplify right side
    251.04x = 89,669.53
  5. Step 5: Solve for x
    x = 89,669.53/251.04
  6. Step 6: Final answer
    x = 357.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.