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Finding the Fourth Proportional to 609.34, 914.06 and 170.58

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Solution

The fourth proportional to 609.34, 914.06 and 170.58 is: 255.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.34 : 914.06 = 170.58 : x
  2. Step 2: Convert to fraction form
    609.34/914.06 = 170.58/x
  3. Step 3: Cross multiply
    609.34x = 914.06 × 170.58
  4. Step 4: Simplify right side
    609.34x = 155,920.35
  5. Step 5: Solve for x
    x = 155,920.35/609.34
  6. Step 6: Final answer
    x = 255.88

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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.