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Finding the Third Proportional to 161,143.13 and 351,172.50

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Solution

The third proportional to 161,143.13 and 351,172.50 is: 765,295.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,143.13 : 351,172.50 = 351,172.50 : x
  2. Step 2: Convert to fraction form
    161,143.13/351,172.50 = 351,172.50/x
  3. Step 3: Cross multiply
    161,143.13x = 351,172.50 × 351,172.50
  4. Step 4: Simplify right side
    161,143.13x = 123,322,124,756.25
  5. Step 5: Solve for x
    x = 123,322,124,756.25/161,143.13
  6. Step 6: Final answer
    x = 765,295.60

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.