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Finding the Third Proportional to 273,010.50 and 431,689.50

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Solution

The third proportional to 273,010.50 and 431,689.50 is: 682,595.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,010.50 : 431,689.50 = 431,689.50 : x
  2. Step 2: Convert to fraction form
    273,010.50/431,689.50 = 431,689.50/x
  3. Step 3: Cross multiply
    273,010.50x = 431,689.50 × 431,689.50
  4. Step 4: Simplify right side
    273,010.50x = 186,355,824,410.25
  5. Step 5: Solve for x
    x = 186,355,824,410.25/273,010.50
  6. Step 6: Final answer
    x = 682,595.81

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.