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Finding the Fourth Proportional to 663.52, 995.01 and 273.43

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Solution

The fourth proportional to 663.52, 995.01 and 273.43 is: 410.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    663.52 : 995.01 = 273.43 : x
  2. Step 2: Convert to fraction form
    663.52/995.01 = 273.43/x
  3. Step 3: Cross multiply
    663.52x = 995.01 × 273.43
  4. Step 4: Simplify right side
    663.52x = 272,065.58
  5. Step 5: Solve for x
    x = 272,065.58/663.52
  6. Step 6: Final answer
    x = 410.03

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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.