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Finding the Fourth Proportional to 246.08, 371.20 and 243.20

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Solution

The fourth proportional to 246.08, 371.20 and 243.20 is: 366.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.08 : 371.20 = 243.20 : x
  2. Step 2: Convert to fraction form
    246.08/371.20 = 243.20/x
  3. Step 3: Cross multiply
    246.08x = 371.20 × 243.20
  4. Step 4: Simplify right side
    246.08x = 90,275.84
  5. Step 5: Solve for x
    x = 90,275.84/246.08
  6. Step 6: Final answer
    x = 366.86

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.