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Finding the Third Proportional to 155,317.50 and 326,227.50

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Solution

The third proportional to 155,317.50 and 326,227.50 is: 685,205.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,317.50 : 326,227.50 = 326,227.50 : x
  2. Step 2: Convert to fraction form
    155,317.50/326,227.50 = 326,227.50/x
  3. Step 3: Cross multiply
    155,317.50x = 326,227.50 × 326,227.50
  4. Step 4: Simplify right side
    155,317.50x = 106,424,381,756.25
  5. Step 5: Solve for x
    x = 106,424,381,756.25/155,317.50
  6. Step 6: Final answer
    x = 685,205.35

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.