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Finding the Third Proportional to 202,642.50 and 313,804.50

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Solution

The third proportional to 202,642.50 and 313,804.50 is: 485,945.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,642.50 : 313,804.50 = 313,804.50 : x
  2. Step 2: Convert to fraction form
    202,642.50/313,804.50 = 313,804.50/x
  3. Step 3: Cross multiply
    202,642.50x = 313,804.50 × 313,804.50
  4. Step 4: Simplify right side
    202,642.50x = 98,473,264,220.25
  5. Step 5: Solve for x
    x = 98,473,264,220.25/202,642.50
  6. Step 6: Final answer
    x = 485,945.76

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.