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Finding the Fourth Proportional to 443.07, 612.27 and 338.04

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Solution

The fourth proportional to 443.07, 612.27 and 338.04 is: 467.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    443.07 : 612.27 = 338.04 : x
  2. Step 2: Convert to fraction form
    443.07/612.27 = 338.04/x
  3. Step 3: Cross multiply
    443.07x = 612.27 × 338.04
  4. Step 4: Simplify right side
    443.07x = 206,971.75
  5. Step 5: Solve for x
    x = 206,971.75/443.07
  6. Step 6: Final answer
    x = 467.13

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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.