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Finding the Fourth Proportional to 547.61, 821.41 and 273.42

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Solution

The fourth proportional to 547.61, 821.41 and 273.42 is: 410.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.61 : 821.41 = 273.42 : x
  2. Step 2: Convert to fraction form
    547.61/821.41 = 273.42/x
  3. Step 3: Cross multiply
    547.61x = 821.41 × 273.42
  4. Step 4: Simplify right side
    547.61x = 224,589.24
  5. Step 5: Solve for x
    x = 224,589.24/547.61
  6. Step 6: Final answer
    x = 410.13

Related Problems

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Half scale
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Double scale
Find fourth proportional to 548.61, 822.91 and 274.42
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.