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Finding the Fourth Proportional to 251.59, 375.64 and 248.98

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Solution

The fourth proportional to 251.59, 375.64 and 248.98 is: 371.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.59 : 375.64 = 248.98 : x
  2. Step 2: Convert to fraction form
    251.59/375.64 = 248.98/x
  3. Step 3: Cross multiply
    251.59x = 375.64 × 248.98
  4. Step 4: Simplify right side
    251.59x = 93,526.85
  5. Step 5: Solve for x
    x = 93,526.85/251.59
  6. Step 6: Final answer
    x = 371.74

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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.