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Finding the Fourth Proportional to 353.32, 532.63 and 325.48

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Solution

The fourth proportional to 353.32, 532.63 and 325.48 is: 490.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.32 : 532.63 = 325.48 : x
  2. Step 2: Convert to fraction form
    353.32/532.63 = 325.48/x
  3. Step 3: Cross multiply
    353.32x = 532.63 × 325.48
  4. Step 4: Simplify right side
    353.32x = 173,360.41
  5. Step 5: Solve for x
    x = 173,360.41/353.32
  6. Step 6: Final answer
    x = 490.66

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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.