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Finding the Fourth Proportional to 471.94, 707.01 and 255.22

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Solution

The fourth proportional to 471.94, 707.01 and 255.22 is: 382.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.94 : 707.01 = 255.22 : x
  2. Step 2: Convert to fraction form
    471.94/707.01 = 255.22/x
  3. Step 3: Cross multiply
    471.94x = 707.01 × 255.22
  4. Step 4: Simplify right side
    471.94x = 180,443.09
  5. Step 5: Solve for x
    x = 180,443.09/471.94
  6. Step 6: Final answer
    x = 382.34

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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.