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Finding the Third Proportional to 149,990.25 and 210,951

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Solution

The third proportional to 149,990.25 and 210,951 is: 296,688.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,990.25 : 210,951 = 210,951 : x
  2. Step 2: Convert to fraction form
    149,990.25/210,951 = 210,951/x
  3. Step 3: Cross multiply
    149,990.25x = 210,951 × 210,951
  4. Step 4: Simplify right side
    149,990.25x = 44,500,324,401
  5. Step 5: Solve for x
    x = 44,500,324,401/149,990.25
  6. Step 6: Final answer
    x = 296,688.11

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.