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Finding the Fourth Proportional to 743.96, 1,116.66 and 333.56

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Solution

The fourth proportional to 743.96, 1,116.66 and 333.56 is: 500.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    743.96 : 1,116.66 = 333.56 : x
  2. Step 2: Convert to fraction form
    743.96/1,116.66 = 333.56/x
  3. Step 3: Cross multiply
    743.96x = 1,116.66 × 333.56
  4. Step 4: Simplify right side
    743.96x = 372,473.11
  5. Step 5: Solve for x
    x = 372,473.11/743.96
  6. Step 6: Final answer
    x = 500.66

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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.