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Finding the Third Proportional to 362.25 and 776.81

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Solution

The third proportional to 362.25 and 776.81 is: 1,665.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.25 : 776.81 = 776.81 : x
  2. Step 2: Convert to fraction form
    362.25/776.81 = 776.81/x
  3. Step 3: Cross multiply
    362.25x = 776.81 × 776.81
  4. Step 4: Simplify right side
    362.25x = 603,437.66
  5. Step 5: Solve for x
    x = 603,437.66/362.25
  6. Step 6: Final answer
    x = 1,665.80

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.