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Finding the Fourth Proportional to 571.11, 855.72 and 296.84

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Solution

The fourth proportional to 571.11, 855.72 and 296.84 is: 444.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.11 : 855.72 = 296.84 : x
  2. Step 2: Convert to fraction form
    571.11/855.72 = 296.84/x
  3. Step 3: Cross multiply
    571.11x = 855.72 × 296.84
  4. Step 4: Simplify right side
    571.11x = 254,007.65
  5. Step 5: Solve for x
    x = 254,007.65/571.11
  6. Step 6: Final answer
    x = 444.76

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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.