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Finding the Fourth Proportional to 608.59, 912.79 and 223.75

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Solution

The fourth proportional to 608.59, 912.79 and 223.75 is: 335.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.59 : 912.79 = 223.75 : x
  2. Step 2: Convert to fraction form
    608.59/912.79 = 223.75/x
  3. Step 3: Cross multiply
    608.59x = 912.79 × 223.75
  4. Step 4: Simplify right side
    608.59x = 204,236.76
  5. Step 5: Solve for x
    x = 204,236.76/608.59
  6. Step 6: Final answer
    x = 335.59

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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.