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Finding the Third Proportional to 163,387 and 353,914

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Solution

The third proportional to 163,387 and 353,914 is: 766,616.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,387 : 353,914 = 353,914 : x
  2. Step 2: Convert to fraction form
    163,387/353,914 = 353,914/x
  3. Step 3: Cross multiply
    163,387x = 353,914 × 353,914
  4. Step 4: Simplify right side
    163,387x = 125,255,119,396
  5. Step 5: Solve for x
    x = 125,255,119,396/163,387
  6. Step 6: Final answer
    x = 766,616.19

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.