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Finding the Fourth Proportional to 549.50, 822.96 and 274.73

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Solution

The fourth proportional to 549.50, 822.96 and 274.73 is: 411.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.50 : 822.96 = 274.73 : x
  2. Step 2: Convert to fraction form
    549.50/822.96 = 274.73/x
  3. Step 3: Cross multiply
    549.50x = 822.96 × 274.73
  4. Step 4: Simplify right side
    549.50x = 226,087.69
  5. Step 5: Solve for x
    x = 226,087.69/549.50
  6. Step 6: Final answer
    x = 411.45

Related Problems

Find fourth proportional to 274.75, 411.48 and 137.36
Half scale
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Double scale
Find fourth proportional to 550.50, 824.46 and 275.73
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.