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Finding the Third Proportional to 127,428.75 and 202,443.50

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Solution

The third proportional to 127,428.75 and 202,443.50 is: 321,617.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,428.75 : 202,443.50 = 202,443.50 : x
  2. Step 2: Convert to fraction form
    127,428.75/202,443.50 = 202,443.50/x
  3. Step 3: Cross multiply
    127,428.75x = 202,443.50 × 202,443.50
  4. Step 4: Simplify right side
    127,428.75x = 40,983,370,692.25
  5. Step 5: Solve for x
    x = 40,983,370,692.25/127,428.75
  6. Step 6: Final answer
    x = 321,617.93

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.