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Finding the Fourth Proportional to 252.79, 377.09 and 245.33

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Solution

The fourth proportional to 252.79, 377.09 and 245.33 is: 365.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.79 : 377.09 = 245.33 : x
  2. Step 2: Convert to fraction form
    252.79/377.09 = 245.33/x
  3. Step 3: Cross multiply
    252.79x = 377.09 × 245.33
  4. Step 4: Simplify right side
    252.79x = 92,510.71
  5. Step 5: Solve for x
    x = 92,510.71/252.79
  6. Step 6: Final answer
    x = 365.96

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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.