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Finding the Third Proportional to 120,775.50 and 262,361.50

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Solution

The third proportional to 120,775.50 and 262,361.50 is: 569,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,775.50 : 262,361.50 = 262,361.50 : x
  2. Step 2: Convert to fraction form
    120,775.50/262,361.50 = 262,361.50/x
  3. Step 3: Cross multiply
    120,775.50x = 262,361.50 × 262,361.50
  4. Step 4: Simplify right side
    120,775.50x = 68,833,556,682.25
  5. Step 5: Solve for x
    x = 68,833,556,682.25/120,775.50
  6. Step 6: Final answer
    x = 569,929.80

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.