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Finding the Third Proportional to 187,716.75 and 388,740

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Solution

The third proportional to 187,716.75 and 388,740 is: 805,036.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,716.75 : 388,740 = 388,740 : x
  2. Step 2: Convert to fraction form
    187,716.75/388,740 = 388,740/x
  3. Step 3: Cross multiply
    187,716.75x = 388,740 × 388,740
  4. Step 4: Simplify right side
    187,716.75x = 151,118,787,600
  5. Step 5: Solve for x
    x = 151,118,787,600/187,716.75
  6. Step 6: Final answer
    x = 805,036.25

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.