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Finding the Fourth Proportional to 571.11, 856.67 and 181.15

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Solution

The fourth proportional to 571.11, 856.67 and 181.15 is: 271.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.11 : 856.67 = 181.15 : x
  2. Step 2: Convert to fraction form
    571.11/856.67 = 181.15/x
  3. Step 3: Cross multiply
    571.11x = 856.67 × 181.15
  4. Step 4: Simplify right side
    571.11x = 155,185.77
  5. Step 5: Solve for x
    x = 155,185.77/571.11
  6. Step 6: Final answer
    x = 271.73

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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.