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Finding the Third Proportional to 172,528 and 263,400

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Solution

The third proportional to 172,528 and 263,400 is: 402,135.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,528 : 263,400 = 263,400 : x
  2. Step 2: Convert to fraction form
    172,528/263,400 = 263,400/x
  3. Step 3: Cross multiply
    172,528x = 263,400 × 263,400
  4. Step 4: Simplify right side
    172,528x = 69,379,560,000
  5. Step 5: Solve for x
    x = 69,379,560,000/172,528
  6. Step 6: Final answer
    x = 402,135.07

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.