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Finding the Fourth Proportional to 571.94, 857.39 and 225.58

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Solution

The fourth proportional to 571.94, 857.39 and 225.58 is: 338.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.94 : 857.39 = 225.58 : x
  2. Step 2: Convert to fraction form
    571.94/857.39 = 225.58/x
  3. Step 3: Cross multiply
    571.94x = 857.39 × 225.58
  4. Step 4: Simplify right side
    571.94x = 193,410.04
  5. Step 5: Solve for x
    x = 193,410.04/571.94
  6. Step 6: Final answer
    x = 338.16

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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.