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Finding the Third Proportional to 416.81 and 877.50

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Solution

The third proportional to 416.81 and 877.50 is: 1,847.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    416.81 : 877.50 = 877.50 : x
  2. Step 2: Convert to fraction form
    416.81/877.50 = 877.50/x
  3. Step 3: Cross multiply
    416.81x = 877.50 × 877.50
  4. Step 4: Simplify right side
    416.81x = 770,006.25
  5. Step 5: Solve for x
    x = 770,006.25/416.81
  6. Step 6: Final answer
    x = 1,847.37

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.