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Finding the Fourth Proportional to 443.26, 611.22 and 433.18

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Solution

The fourth proportional to 443.26, 611.22 and 433.18 is: 597.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    443.26 : 611.22 = 433.18 : x
  2. Step 2: Convert to fraction form
    443.26/611.22 = 433.18/x
  3. Step 3: Cross multiply
    443.26x = 611.22 × 433.18
  4. Step 4: Simplify right side
    443.26x = 264,768.28
  5. Step 5: Solve for x
    x = 264,768.28/443.26
  6. Step 6: Final answer
    x = 597.32

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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.