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Finding the Fourth Proportional to 741.85, 1,112.94 and 303.04

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Solution

The fourth proportional to 741.85, 1,112.94 and 303.04 is: 454.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    741.85 : 1,112.94 = 303.04 : x
  2. Step 2: Convert to fraction form
    741.85/1,112.94 = 303.04/x
  3. Step 3: Cross multiply
    741.85x = 1,112.94 × 303.04
  4. Step 4: Simplify right side
    741.85x = 337,265.34
  5. Step 5: Solve for x
    x = 337,265.34/741.85
  6. Step 6: Final answer
    x = 454.63

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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.