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Finding the Fourth Proportional to 253.19, 376.80 and 252.47

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Solution

The fourth proportional to 253.19, 376.80 and 252.47 is: 375.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.19 : 376.80 = 252.47 : x
  2. Step 2: Convert to fraction form
    253.19/376.80 = 252.47/x
  3. Step 3: Cross multiply
    253.19x = 376.80 × 252.47
  4. Step 4: Simplify right side
    253.19x = 95,130.70
  5. Step 5: Solve for x
    x = 95,130.70/253.19
  6. Step 6: Final answer
    x = 375.73

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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.