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Finding the Fourth Proportional to 253.04, 377.30 and 252.70

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Solution

The fourth proportional to 253.04, 377.30 and 252.70 is: 376.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.04 : 377.30 = 252.70 : x
  2. Step 2: Convert to fraction form
    253.04/377.30 = 252.70/x
  3. Step 3: Cross multiply
    253.04x = 377.30 × 252.70
  4. Step 4: Simplify right side
    253.04x = 95,343.71
  5. Step 5: Solve for x
    x = 95,343.71/253.04
  6. Step 6: Final answer
    x = 376.79

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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.