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Finding the Fourth Proportional to 609.25, 913.88 and 176.41

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Solution

The fourth proportional to 609.25, 913.88 and 176.41 is: 264.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.25 : 913.88 = 176.41 : x
  2. Step 2: Convert to fraction form
    609.25/913.88 = 176.41/x
  3. Step 3: Cross multiply
    609.25x = 913.88 × 176.41
  4. Step 4: Simplify right side
    609.25x = 161,217.57
  5. Step 5: Solve for x
    x = 161,217.57/609.25
  6. Step 6: Final answer
    x = 264.62

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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.