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Finding the Fourth Proportional to 549.05, 823.58 and 183.79

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Solution

The fourth proportional to 549.05, 823.58 and 183.79 is: 275.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.05 : 823.58 = 183.79 : x
  2. Step 2: Convert to fraction form
    549.05/823.58 = 183.79/x
  3. Step 3: Cross multiply
    549.05x = 823.58 × 183.79
  4. Step 4: Simplify right side
    549.05x = 151,365.77
  5. Step 5: Solve for x
    x = 151,365.77/549.05
  6. Step 6: Final answer
    x = 275.69

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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.