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Finding the Fourth Proportional to 744.73, 1,117.15 and 196.91

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Solution

The fourth proportional to 744.73, 1,117.15 and 196.91 is: 295.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    744.73 : 1,117.15 = 196.91 : x
  2. Step 2: Convert to fraction form
    744.73/1,117.15 = 196.91/x
  3. Step 3: Cross multiply
    744.73x = 1,117.15 × 196.91
  4. Step 4: Simplify right side
    744.73x = 219,972.42
  5. Step 5: Solve for x
    x = 219,972.42/744.73
  6. Step 6: Final answer
    x = 295.37

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1.5x scale

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.