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Finding the Fourth Proportional to 276.24, 412.08 and 235.92

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Solution

The fourth proportional to 276.24, 412.08 and 235.92 is: 351.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.24 : 412.08 = 235.92 : x
  2. Step 2: Convert to fraction form
    276.24/412.08 = 235.92/x
  3. Step 3: Cross multiply
    276.24x = 412.08 × 235.92
  4. Step 4: Simplify right side
    276.24x = 97,217.91
  5. Step 5: Solve for x
    x = 97,217.91/276.24
  6. Step 6: Final answer
    x = 351.93

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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.