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Finding the Third Proportional to 197,709 and 306,394.50

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Solution

The third proportional to 197,709 and 306,394.50 is: 474,827.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,709 : 306,394.50 = 306,394.50 : x
  2. Step 2: Convert to fraction form
    197,709/306,394.50 = 306,394.50/x
  3. Step 3: Cross multiply
    197,709x = 306,394.50 × 306,394.50
  4. Step 4: Simplify right side
    197,709x = 93,877,589,630.25
  5. Step 5: Solve for x
    x = 93,877,589,630.25/197,709
  6. Step 6: Final answer
    x = 474,827.09

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.