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Finding the Fourth Proportional to 617.90, 926.82 and 252.27

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Solution

The fourth proportional to 617.90, 926.82 and 252.27 is: 378.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.90 : 926.82 = 252.27 : x
  2. Step 2: Convert to fraction form
    617.90/926.82 = 252.27/x
  3. Step 3: Cross multiply
    617.90x = 926.82 × 252.27
  4. Step 4: Simplify right side
    617.90x = 233,808.88
  5. Step 5: Solve for x
    x = 233,808.88/617.90
  6. Step 6: Final answer
    x = 378.40

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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.