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Finding the Fourth Proportional to 617.98, 926.56 and 252.88

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Solution

The fourth proportional to 617.98, 926.56 and 252.88 is: 379.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.98 : 926.56 = 252.88 : x
  2. Step 2: Convert to fraction form
    617.98/926.56 = 252.88/x
  3. Step 3: Cross multiply
    617.98x = 926.56 × 252.88
  4. Step 4: Simplify right side
    617.98x = 234,308.49
  5. Step 5: Solve for x
    x = 234,308.49/617.98
  6. Step 6: Final answer
    x = 379.15

Related Problems

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Half scale
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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.