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Finding the Third Proportional to 187,661.25 and 291,012.75

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Solution

The third proportional to 187,661.25 and 291,012.75 is: 451,283.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,661.25 : 291,012.75 = 291,012.75 : x
  2. Step 2: Convert to fraction form
    187,661.25/291,012.75 = 291,012.75/x
  3. Step 3: Cross multiply
    187,661.25x = 291,012.75 × 291,012.75
  4. Step 4: Simplify right side
    187,661.25x = 84,688,420,662.56
  5. Step 5: Solve for x
    x = 84,688,420,662.56/187,661.25
  6. Step 6: Final answer
    x = 451,283.47

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.