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Finding the Fourth Proportional to 251.01, 377.98 and 186.46

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Solution

The fourth proportional to 251.01, 377.98 and 186.46 is: 280.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.01 : 377.98 = 186.46 : x
  2. Step 2: Convert to fraction form
    251.01/377.98 = 186.46/x
  3. Step 3: Cross multiply
    251.01x = 377.98 × 186.46
  4. Step 4: Simplify right side
    251.01x = 70,478.15
  5. Step 5: Solve for x
    x = 70,478.15/251.01
  6. Step 6: Final answer
    x = 280.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.