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Finding the Third Proportional to 163,005 and 343,709

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Solution

The third proportional to 163,005 and 343,709 is: 724,737.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,005 : 343,709 = 343,709 : x
  2. Step 2: Convert to fraction form
    163,005/343,709 = 343,709/x
  3. Step 3: Cross multiply
    163,005x = 343,709 × 343,709
  4. Step 4: Simplify right side
    163,005x = 118,135,876,681
  5. Step 5: Solve for x
    x = 118,135,876,681/163,005
  6. Step 6: Final answer
    x = 724,737.75

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.