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Finding the Fourth Proportional to 577.07, 865.48 and 166.12

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Solution

The fourth proportional to 577.07, 865.48 and 166.12 is: 249.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.07 : 865.48 = 166.12 : x
  2. Step 2: Convert to fraction form
    577.07/865.48 = 166.12/x
  3. Step 3: Cross multiply
    577.07x = 865.48 × 166.12
  4. Step 4: Simplify right side
    577.07x = 143,773.54
  5. Step 5: Solve for x
    x = 143,773.54/577.07
  6. Step 6: Final answer
    x = 249.14

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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.