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Finding the Fourth Proportional to 471.41, 650.28 and 284.79

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Solution

The fourth proportional to 471.41, 650.28 and 284.79 is: 392.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.41 : 650.28 = 284.79 : x
  2. Step 2: Convert to fraction form
    471.41/650.28 = 284.79/x
  3. Step 3: Cross multiply
    471.41x = 650.28 × 284.79
  4. Step 4: Simplify right side
    471.41x = 185,193.24
  5. Step 5: Solve for x
    x = 185,193.24/471.41
  6. Step 6: Final answer
    x = 392.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.