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Finding the Fourth Proportional to 551.30, 826.94 and 291.25

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Solution

The fourth proportional to 551.30, 826.94 and 291.25 is: 436.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.30 : 826.94 = 291.25 : x
  2. Step 2: Convert to fraction form
    551.30/826.94 = 291.25/x
  3. Step 3: Cross multiply
    551.30x = 826.94 × 291.25
  4. Step 4: Simplify right side
    551.30x = 240,844.94
  5. Step 5: Solve for x
    x = 240,844.94/551.30
  6. Step 6: Final answer
    x = 436.87

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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.