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Finding the Fourth Proportional to 471.18, 650.23 and 261.36

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Solution

The fourth proportional to 471.18, 650.23 and 261.36 is: 360.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.18 : 650.23 = 261.36 : x
  2. Step 2: Convert to fraction form
    471.18/650.23 = 261.36/x
  3. Step 3: Cross multiply
    471.18x = 650.23 × 261.36
  4. Step 4: Simplify right side
    471.18x = 169,943.46
  5. Step 5: Solve for x
    x = 169,943.46/471.18
  6. Step 6: Final answer
    x = 360.67

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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.