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Finding the Fourth Proportional to 749.33, 1,123.99 and 194.04

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Solution

The fourth proportional to 749.33, 1,123.99 and 194.04 is: 291.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    749.33 : 1,123.99 = 194.04 : x
  2. Step 2: Convert to fraction form
    749.33/1,123.99 = 194.04/x
  3. Step 3: Cross multiply
    749.33x = 1,123.99 × 194.04
  4. Step 4: Simplify right side
    749.33x = 218,099.02
  5. Step 5: Solve for x
    x = 218,099.02/749.33
  6. Step 6: Final answer
    x = 291.06

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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.