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Finding the Fourth Proportional to 386.32, 532.96 and 246.48

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Solution

The fourth proportional to 386.32, 532.96 and 246.48 is: 340.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    386.32 : 532.96 = 246.48 : x
  2. Step 2: Convert to fraction form
    386.32/532.96 = 246.48/x
  3. Step 3: Cross multiply
    386.32x = 532.96 × 246.48
  4. Step 4: Simplify right side
    386.32x = 131,363.98
  5. Step 5: Solve for x
    x = 131,363.98/386.32
  6. Step 6: Final answer
    x = 340.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.