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Finding the Fourth Proportional to 471.50, 650.67 and 275.03

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Solution

The fourth proportional to 471.50, 650.67 and 275.03 is: 379.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.50 : 650.67 = 275.03 : x
  2. Step 2: Convert to fraction form
    471.50/650.67 = 275.03/x
  3. Step 3: Cross multiply
    471.50x = 650.67 × 275.03
  4. Step 4: Simplify right side
    471.50x = 178,953.77
  5. Step 5: Solve for x
    x = 178,953.77/471.50
  6. Step 6: Final answer
    x = 379.54

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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.