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Finding the Third Proportional to 97,440 and 209,920

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Solution

The third proportional to 97,440 and 209,920 is: 452,241.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,440 : 209,920 = 209,920 : x
  2. Step 2: Convert to fraction form
    97,440/209,920 = 209,920/x
  3. Step 3: Cross multiply
    97,440x = 209,920 × 209,920
  4. Step 4: Simplify right side
    97,440x = 44,066,406,400
  5. Step 5: Solve for x
    x = 44,066,406,400/97,440
  6. Step 6: Final answer
    x = 452,241.44

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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.