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Finding the Fourth Proportional to 571.85, 857.44 and 181.77

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Solution

The fourth proportional to 571.85, 857.44 and 181.77 is: 272.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.85 : 857.44 = 181.77 : x
  2. Step 2: Convert to fraction form
    571.85/857.44 = 181.77/x
  3. Step 3: Cross multiply
    571.85x = 857.44 × 181.77
  4. Step 4: Simplify right side
    571.85x = 155,856.87
  5. Step 5: Solve for x
    x = 155,856.87/571.85
  6. Step 6: Final answer
    x = 272.55

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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.