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Finding the Fourth Proportional to 663.50, 995.46 and 298.32

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Solution

The fourth proportional to 663.50, 995.46 and 298.32 is: 447.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    663.50 : 995.46 = 298.32 : x
  2. Step 2: Convert to fraction form
    663.50/995.46 = 298.32/x
  3. Step 3: Cross multiply
    663.50x = 995.46 × 298.32
  4. Step 4: Simplify right side
    663.50x = 296,965.63
  5. Step 5: Solve for x
    x = 296,965.63/663.50
  6. Step 6: Final answer
    x = 447.57

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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.