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Finding the Third Proportional to 209,344.50 and 299,011.50

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Solution

The third proportional to 209,344.50 and 299,011.50 is: 427,084.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,344.50 : 299,011.50 = 299,011.50 : x
  2. Step 2: Convert to fraction form
    209,344.50/299,011.50 = 299,011.50/x
  3. Step 3: Cross multiply
    209,344.50x = 299,011.50 × 299,011.50
  4. Step 4: Simplify right side
    209,344.50x = 89,407,877,132.25
  5. Step 5: Solve for x
    x = 89,407,877,132.25/209,344.50
  6. Step 6: Final answer
    x = 427,084.91

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.