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Finding the Fourth Proportional to 617.64, 926.51 and 252.51

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Solution

The fourth proportional to 617.64, 926.51 and 252.51 is: 378.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.64 : 926.51 = 252.51 : x
  2. Step 2: Convert to fraction form
    617.64/926.51 = 252.51/x
  3. Step 3: Cross multiply
    617.64x = 926.51 × 252.51
  4. Step 4: Simplify right side
    617.64x = 233,951.78
  5. Step 5: Solve for x
    x = 233,951.78/617.64
  6. Step 6: Final answer
    x = 378.78

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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.