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Finding the Fourth Proportional to 741.35, 1,112.13 and 247.59

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Solution

The fourth proportional to 741.35, 1,112.13 and 247.59 is: 371.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    741.35 : 1,112.13 = 247.59 : x
  2. Step 2: Convert to fraction form
    741.35/1,112.13 = 247.59/x
  3. Step 3: Cross multiply
    741.35x = 1,112.13 × 247.59
  4. Step 4: Simplify right side
    741.35x = 275,351.03
  5. Step 5: Solve for x
    x = 275,351.03/741.35
  6. Step 6: Final answer
    x = 371.42

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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.