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Finding the Third Proportional to 917.50 and 2,000.38

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Solution

The third proportional to 917.50 and 2,000.38 is: 4,361.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    917.50 : 2,000.38 = 2,000.38 : x
  2. Step 2: Convert to fraction form
    917.50/2,000.38 = 2,000.38/x
  3. Step 3: Cross multiply
    917.50x = 2,000.38 × 2,000.38
  4. Step 4: Simplify right side
    917.50x = 4,001,500.14
  5. Step 5: Solve for x
    x = 4,001,500.14/917.50
  6. Step 6: Final answer
    x = 4,361.31

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.