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Finding the Third Proportional to 193,726 and 290,787

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Solution

The third proportional to 193,726 and 290,787 is: 436,477.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,726 : 290,787 = 290,787 : x
  2. Step 2: Convert to fraction form
    193,726/290,787 = 290,787/x
  3. Step 3: Cross multiply
    193,726x = 290,787 × 290,787
  4. Step 4: Simplify right side
    193,726x = 84,557,079,369
  5. Step 5: Solve for x
    x = 84,557,079,369/193,726
  6. Step 6: Final answer
    x = 436,477.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.