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Finding the Third Proportional to 135,411 and 189,307.50

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Solution

The third proportional to 135,411 and 189,307.50 is: 264,655.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,411 : 189,307.50 = 189,307.50 : x
  2. Step 2: Convert to fraction form
    135,411/189,307.50 = 189,307.50/x
  3. Step 3: Cross multiply
    135,411x = 189,307.50 × 189,307.50
  4. Step 4: Simplify right side
    135,411x = 35,837,329,556.25
  5. Step 5: Solve for x
    x = 35,837,329,556.25/135,411
  6. Step 6: Final answer
    x = 264,655.97

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.