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Finding the Fourth Proportional to 543.22, 815.04 and 283.27

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Solution

The fourth proportional to 543.22, 815.04 and 283.27 is: 425.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.22 : 815.04 = 283.27 : x
  2. Step 2: Convert to fraction form
    543.22/815.04 = 283.27/x
  3. Step 3: Cross multiply
    543.22x = 815.04 × 283.27
  4. Step 4: Simplify right side
    543.22x = 230,876.38
  5. Step 5: Solve for x
    x = 230,876.38/543.22
  6. Step 6: Final answer
    x = 425.01

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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.