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Finding the Fourth Proportional to 547.51, 821.54 and 273.64

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Solution

The fourth proportional to 547.51, 821.54 and 273.64 is: 410.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.51 : 821.54 = 273.64 : x
  2. Step 2: Convert to fraction form
    547.51/821.54 = 273.64/x
  3. Step 3: Cross multiply
    547.51x = 821.54 × 273.64
  4. Step 4: Simplify right side
    547.51x = 224,806.21
  5. Step 5: Solve for x
    x = 224,806.21/547.51
  6. Step 6: Final answer
    x = 410.60

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.