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Finding the Fourth Proportional to 362.88, 543.96 and 326.88

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Solution

The fourth proportional to 362.88, 543.96 and 326.88 is: 490.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.88 : 543.96 = 326.88 : x
  2. Step 2: Convert to fraction form
    362.88/543.96 = 326.88/x
  3. Step 3: Cross multiply
    362.88x = 543.96 × 326.88
  4. Step 4: Simplify right side
    362.88x = 177,809.64
  5. Step 5: Solve for x
    x = 177,809.64/362.88
  6. Step 6: Final answer
    x = 490.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.