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Finding the Fourth Proportional to 663.24, 994.94 and 297.98

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Solution

The fourth proportional to 663.24, 994.94 and 297.98 is: 447.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    663.24 : 994.94 = 297.98 : x
  2. Step 2: Convert to fraction form
    663.24/994.94 = 297.98/x
  3. Step 3: Cross multiply
    663.24x = 994.94 × 297.98
  4. Step 4: Simplify right side
    663.24x = 296,472.22
  5. Step 5: Solve for x
    x = 296,472.22/663.24
  6. Step 6: Final answer
    x = 447.01

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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.