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Finding the Fourth Proportional to 276.40, 412.22 and 250.48

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Solution

The fourth proportional to 276.40, 412.22 and 250.48 is: 373.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.40 : 412.22 = 250.48 : x
  2. Step 2: Convert to fraction form
    276.40/412.22 = 250.48/x
  3. Step 3: Cross multiply
    276.40x = 412.22 × 250.48
  4. Step 4: Simplify right side
    276.40x = 103,252.87
  5. Step 5: Solve for x
    x = 103,252.87/276.40
  6. Step 6: Final answer
    x = 373.56

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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.