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Finding the Third Proportional to 471 and 838.50

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Solution

The third proportional to 471 and 838.50 is: 1,492.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    471 : 838.50 = 838.50 : x
  2. Step 2: Convert to fraction form
    471/838.50 = 838.50/x
  3. Step 3: Cross multiply
    471x = 838.50 × 838.50
  4. Step 4: Simplify right side
    471x = 703,082.25
  5. Step 5: Solve for x
    x = 703,082.25/471
  6. Step 6: Final answer
    x = 1,492.74

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.