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Finding the Third Proportional to 109,408.50 and 235,557

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Solution

The third proportional to 109,408.50 and 235,557 is: 507,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,408.50 : 235,557 = 235,557 : x
  2. Step 2: Convert to fraction form
    109,408.50/235,557 = 235,557/x
  3. Step 3: Cross multiply
    109,408.50x = 235,557 × 235,557
  4. Step 4: Simplify right side
    109,408.50x = 55,487,100,249
  5. Step 5: Solve for x
    x = 55,487,100,249/109,408.50
  6. Step 6: Final answer
    x = 507,155.30

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.