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Finding the Fourth Proportional to 373.32, 513.99 and 324.18

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Solution

The fourth proportional to 373.32, 513.99 and 324.18 is: 446.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.32 : 513.99 = 324.18 : x
  2. Step 2: Convert to fraction form
    373.32/513.99 = 324.18/x
  3. Step 3: Cross multiply
    373.32x = 513.99 × 324.18
  4. Step 4: Simplify right side
    373.32x = 166,625.28
  5. Step 5: Solve for x
    x = 166,625.28/373.32
  6. Step 6: Final answer
    x = 446.33

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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.