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Finding the Fourth Proportional to 547.75, 822.03 and 259.26

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Solution

The fourth proportional to 547.75, 822.03 and 259.26 is: 389.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.75 : 822.03 = 259.26 : x
  2. Step 2: Convert to fraction form
    547.75/822.03 = 259.26/x
  3. Step 3: Cross multiply
    547.75x = 822.03 × 259.26
  4. Step 4: Simplify right side
    547.75x = 213,119.50
  5. Step 5: Solve for x
    x = 213,119.50/547.75
  6. Step 6: Final answer
    x = 389.08

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Double scale
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Similar ratio
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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.