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Finding the Fourth Proportional to 550.99, 826.79 and 226.28

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Solution

The fourth proportional to 550.99, 826.79 and 226.28 is: 339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.99 : 826.79 = 226.28 : x
  2. Step 2: Convert to fraction form
    550.99/826.79 = 226.28/x
  3. Step 3: Cross multiply
    550.99x = 826.79 × 226.28
  4. Step 4: Simplify right side
    550.99x = 187,086.04
  5. Step 5: Solve for x
    x = 187,086.04/550.99
  6. Step 6: Final answer
    x = 339.55

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Find fourth proportional to 275.50, 413.40 and 113.14
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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.