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Finding the Fourth Proportional to 549.29, 823.89 and 275.57

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Solution

The fourth proportional to 549.29, 823.89 and 275.57 is: 413.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.29 : 823.89 = 275.57 : x
  2. Step 2: Convert to fraction form
    549.29/823.89 = 275.57/x
  3. Step 3: Cross multiply
    549.29x = 823.89 × 275.57
  4. Step 4: Simplify right side
    549.29x = 227,039.37
  5. Step 5: Solve for x
    x = 227,039.37/549.29
  6. Step 6: Final answer
    x = 413.33

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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.