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Finding the Fourth Proportional to 259.38, 387.36 and 250.56

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Solution

The fourth proportional to 259.38, 387.36 and 250.56 is: 374.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.38 : 387.36 = 250.56 : x
  2. Step 2: Convert to fraction form
    259.38/387.36 = 250.56/x
  3. Step 3: Cross multiply
    259.38x = 387.36 × 250.56
  4. Step 4: Simplify right side
    259.38x = 97,056.92
  5. Step 5: Solve for x
    x = 97,056.92/259.38
  6. Step 6: Final answer
    x = 374.19

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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.