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Finding the Third Proportional to 263,000 and 372,139

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Solution

The third proportional to 263,000 and 372,139 is: 526,568.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,000 : 372,139 = 372,139 : x
  2. Step 2: Convert to fraction form
    263,000/372,139 = 372,139/x
  3. Step 3: Cross multiply
    263,000x = 372,139 × 372,139
  4. Step 4: Simplify right side
    263,000x = 138,487,435,321
  5. Step 5: Solve for x
    x = 138,487,435,321/263,000
  6. Step 6: Final answer
    x = 526,568.20

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.