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Finding the Fourth Proportional to 259.32, 385.88 and 250.50

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Solution

The fourth proportional to 259.32, 385.88 and 250.50 is: 372.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.32 : 385.88 = 250.50 : x
  2. Step 2: Convert to fraction form
    259.32/385.88 = 250.50/x
  3. Step 3: Cross multiply
    259.32x = 385.88 × 250.50
  4. Step 4: Simplify right side
    259.32x = 96,662.94
  5. Step 5: Solve for x
    x = 96,662.94/259.32
  6. Step 6: Final answer
    x = 372.76

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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.