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Finding the Third Proportional to 77,031 and 165,559.50

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Solution

The third proportional to 77,031 and 165,559.50 is: 355,830.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,031 : 165,559.50 = 165,559.50 : x
  2. Step 2: Convert to fraction form
    77,031/165,559.50 = 165,559.50/x
  3. Step 3: Cross multiply
    77,031x = 165,559.50 × 165,559.50
  4. Step 4: Simplify right side
    77,031x = 27,409,948,040.25
  5. Step 5: Solve for x
    x = 27,409,948,040.25/77,031
  6. Step 6: Final answer
    x = 355,830.09

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.