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Finding the Fourth Proportional to 617.85, 926.54 and 252.44

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Solution

The fourth proportional to 617.85, 926.54 and 252.44 is: 378.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.85 : 926.54 = 252.44 : x
  2. Step 2: Convert to fraction form
    617.85/926.54 = 252.44/x
  3. Step 3: Cross multiply
    617.85x = 926.54 × 252.44
  4. Step 4: Simplify right side
    617.85x = 233,895.76
  5. Step 5: Solve for x
    x = 233,895.76/617.85
  6. Step 6: Final answer
    x = 378.56

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Double scale
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Similar ratio
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1.5x scale

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.