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Finding the Third Proportional to 140,458 and 307,191

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Solution

The third proportional to 140,458 and 307,191 is: 671,847.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,458 : 307,191 = 307,191 : x
  2. Step 2: Convert to fraction form
    140,458/307,191 = 307,191/x
  3. Step 3: Cross multiply
    140,458x = 307,191 × 307,191
  4. Step 4: Simplify right side
    140,458x = 94,366,310,481
  5. Step 5: Solve for x
    x = 94,366,310,481/140,458
  6. Step 6: Final answer
    x = 671,847.17

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.