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Finding the Third Proportional to 143,572.50 and 210,917.25

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Solution

The third proportional to 143,572.50 and 210,917.25 is: 309,851.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,572.50 : 210,917.25 = 210,917.25 : x
  2. Step 2: Convert to fraction form
    143,572.50/210,917.25 = 210,917.25/x
  3. Step 3: Cross multiply
    143,572.50x = 210,917.25 × 210,917.25
  4. Step 4: Simplify right side
    143,572.50x = 44,486,086,347.56
  5. Step 5: Solve for x
    x = 44,486,086,347.56/143,572.50
  6. Step 6: Final answer
    x = 309,851.03

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.