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Finding the Fourth Proportional to 486.05, 732.10 and 443.03

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Solution

The fourth proportional to 486.05, 732.10 and 443.03 is: 667.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486.05 : 732.10 = 443.03 : x
  2. Step 2: Convert to fraction form
    486.05/732.10 = 443.03/x
  3. Step 3: Cross multiply
    486.05x = 732.10 × 443.03
  4. Step 4: Simplify right side
    486.05x = 324,340.05
  5. Step 5: Solve for x
    x = 324,340.05/486.05
  6. Step 6: Final answer
    x = 667.30

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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.