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Finding the Third Proportional to 100,458 and 211,252.50

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Solution

The third proportional to 100,458 and 211,252.50 is: 444,241.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,458 : 211,252.50 = 211,252.50 : x
  2. Step 2: Convert to fraction form
    100,458/211,252.50 = 211,252.50/x
  3. Step 3: Cross multiply
    100,458x = 211,252.50 × 211,252.50
  4. Step 4: Simplify right side
    100,458x = 44,627,618,756.25
  5. Step 5: Solve for x
    x = 44,627,618,756.25/100,458
  6. Step 6: Final answer
    x = 444,241.56

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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.