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Finding the Fourth Proportional to 617.93, 926.90 and 361.25

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Solution

The fourth proportional to 617.93, 926.90 and 361.25 is: 541.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.93 : 926.90 = 361.25 : x
  2. Step 2: Convert to fraction form
    617.93/926.90 = 361.25/x
  3. Step 3: Cross multiply
    617.93x = 926.90 × 361.25
  4. Step 4: Simplify right side
    617.93x = 334,842.63
  5. Step 5: Solve for x
    x = 334,842.63/617.93
  6. Step 6: Final answer
    x = 541.88

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Double scale
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Similar ratio
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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.