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Finding the Third Proportional to 97,389 and 209,358

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Solution

The third proportional to 97,389 and 209,358 is: 450,058.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,389 : 209,358 = 209,358 : x
  2. Step 2: Convert to fraction form
    97,389/209,358 = 209,358/x
  3. Step 3: Cross multiply
    97,389x = 209,358 × 209,358
  4. Step 4: Simplify right side
    97,389x = 43,830,772,164
  5. Step 5: Solve for x
    x = 43,830,772,164/97,389
  6. Step 6: Final answer
    x = 450,058.76

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.