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Finding the Fourth Proportional to 744.01, 1,116.09 and 196.23

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Solution

The fourth proportional to 744.01, 1,116.09 and 196.23 is: 294.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    744.01 : 1,116.09 = 196.23 : x
  2. Step 2: Convert to fraction form
    744.01/1,116.09 = 196.23/x
  3. Step 3: Cross multiply
    744.01x = 1,116.09 × 196.23
  4. Step 4: Simplify right side
    744.01x = 219,010.34
  5. Step 5: Solve for x
    x = 219,010.34/744.01
  6. Step 6: Final answer
    x = 294.36

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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.