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Finding the Fourth Proportional to 617.97, 926.93 and 155.75

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Solution

The fourth proportional to 617.97, 926.93 and 155.75 is: 233.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.97 : 926.93 = 155.75 : x
  2. Step 2: Convert to fraction form
    617.97/926.93 = 155.75/x
  3. Step 3: Cross multiply
    617.97x = 926.93 × 155.75
  4. Step 4: Simplify right side
    617.97x = 144,367.49
  5. Step 5: Solve for x
    x = 144,367.49/617.97
  6. Step 6: Final answer
    x = 233.62

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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.