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Finding the Third Proportional to 180,886.50 and 397,858.50

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Solution

The third proportional to 180,886.50 and 397,858.50 is: 875,086.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,886.50 : 397,858.50 = 397,858.50 : x
  2. Step 2: Convert to fraction form
    180,886.50/397,858.50 = 397,858.50/x
  3. Step 3: Cross multiply
    180,886.50x = 397,858.50 × 397,858.50
  4. Step 4: Simplify right side
    180,886.50x = 158,291,386,022.25
  5. Step 5: Solve for x
    x = 158,291,386,022.25/180,886.50
  6. Step 6: Final answer
    x = 875,086.79

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.