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Finding the Fourth Proportional to 517.03, 775.14 and 324.25

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Solution

The fourth proportional to 517.03, 775.14 and 324.25 is: 486.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.03 : 775.14 = 324.25 : x
  2. Step 2: Convert to fraction form
    517.03/775.14 = 324.25/x
  3. Step 3: Cross multiply
    517.03x = 775.14 × 324.25
  4. Step 4: Simplify right side
    517.03x = 251,339.15
  5. Step 5: Solve for x
    x = 251,339.15/517.03
  6. Step 6: Final answer
    x = 486.12

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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.