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Finding the Fourth Proportional to 549.29, 823.59 and 275.51

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Solution

The fourth proportional to 549.29, 823.59 and 275.51 is: 413.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.29 : 823.59 = 275.51 : x
  2. Step 2: Convert to fraction form
    549.29/823.59 = 275.51/x
  3. Step 3: Cross multiply
    549.29x = 823.59 × 275.51
  4. Step 4: Simplify right side
    549.29x = 226,903.16
  5. Step 5: Solve for x
    x = 226,903.16/549.29
  6. Step 6: Final answer
    x = 413.09

Related Problems

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Half scale
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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.