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Finding the Fourth Proportional to 471.29, 650.36 and 261.47

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Solution

The fourth proportional to 471.29, 650.36 and 261.47 is: 360.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.29 : 650.36 = 261.47 : x
  2. Step 2: Convert to fraction form
    471.29/650.36 = 261.47/x
  3. Step 3: Cross multiply
    471.29x = 650.36 × 261.47
  4. Step 4: Simplify right side
    471.29x = 170,050.28
  5. Step 5: Solve for x
    x = 170,050.28/471.29
  6. Step 6: Final answer
    x = 360.82

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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.