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Finding the Fourth Proportional to 251.07, 374.85 and 235.62

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Solution

The fourth proportional to 251.07, 374.85 and 235.62 is: 351.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.07 : 374.85 = 235.62 : x
  2. Step 2: Convert to fraction form
    251.07/374.85 = 235.62/x
  3. Step 3: Cross multiply
    251.07x = 374.85 × 235.62
  4. Step 4: Simplify right side
    251.07x = 88,322.16
  5. Step 5: Solve for x
    x = 88,322.16/251.07
  6. Step 6: Final answer
    x = 351.78

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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.