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Finding the Third Proportional to 136,520.50 and 213,692.50

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Solution

The third proportional to 136,520.50 and 213,692.50 is: 334,488.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,520.50 : 213,692.50 = 213,692.50 : x
  2. Step 2: Convert to fraction form
    136,520.50/213,692.50 = 213,692.50/x
  3. Step 3: Cross multiply
    136,520.50x = 213,692.50 × 213,692.50
  4. Step 4: Simplify right side
    136,520.50x = 45,664,484,556.25
  5. Step 5: Solve for x
    x = 45,664,484,556.25/136,520.50
  6. Step 6: Final answer
    x = 334,488.11

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.