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Finding the Third Proportional to 129,458 and 199,875

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Solution

The third proportional to 129,458 and 199,875 is: 308,594.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,458 : 199,875 = 199,875 : x
  2. Step 2: Convert to fraction form
    129,458/199,875 = 199,875/x
  3. Step 3: Cross multiply
    129,458x = 199,875 × 199,875
  4. Step 4: Simplify right side
    129,458x = 39,950,015,625
  5. Step 5: Solve for x
    x = 39,950,015,625/129,458
  6. Step 6: Final answer
    x = 308,594.41

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.