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Finding the Fourth Proportional to 362.10, 541.80 and 329.70

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Solution

The fourth proportional to 362.10, 541.80 and 329.70 is: 493.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.10 : 541.80 = 329.70 : x
  2. Step 2: Convert to fraction form
    362.10/541.80 = 329.70/x
  3. Step 3: Cross multiply
    362.10x = 541.80 × 329.70
  4. Step 4: Simplify right side
    362.10x = 178,631.46
  5. Step 5: Solve for x
    x = 178,631.46/362.10
  6. Step 6: Final answer
    x = 493.32

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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.