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Finding the Fourth Proportional to 250.82, 374.74 and 239.48

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Solution

The fourth proportional to 250.82, 374.74 and 239.48 is: 357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.82 : 374.74 = 239.48 : x
  2. Step 2: Convert to fraction form
    250.82/374.74 = 239.48/x
  3. Step 3: Cross multiply
    250.82x = 374.74 × 239.48
  4. Step 4: Simplify right side
    250.82x = 89,742.74
  5. Step 5: Solve for x
    x = 89,742.74/250.82
  6. Step 6: Final answer
    x = 357.80

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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.