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Finding the Fourth Proportional to 471.30, 650.43 and 296.70

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Solution

The fourth proportional to 471.30, 650.43 and 296.70 is: 409.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.30 : 650.43 = 296.70 : x
  2. Step 2: Convert to fraction form
    471.30/650.43 = 296.70/x
  3. Step 3: Cross multiply
    471.30x = 650.43 × 296.70
  4. Step 4: Simplify right side
    471.30x = 192,982.58
  5. Step 5: Solve for x
    x = 192,982.58/471.30
  6. Step 6: Final answer
    x = 409.47

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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.