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Finding the Third Proportional to 103,134.94 and 212,692.50

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Solution

The third proportional to 103,134.94 and 212,692.50 is: 438,630.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,134.94 : 212,692.50 = 212,692.50 : x
  2. Step 2: Convert to fraction form
    103,134.94/212,692.50 = 212,692.50/x
  3. Step 3: Cross multiply
    103,134.94x = 212,692.50 × 212,692.50
  4. Step 4: Simplify right side
    103,134.94x = 45,238,099,556.25
  5. Step 5: Solve for x
    x = 45,238,099,556.25/103,134.94
  6. Step 6: Final answer
    x = 438,630.21

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.