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Finding the Third Proportional to 138,246.75 and 292,693.50

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Solution

The third proportional to 138,246.75 and 292,693.50 is: 619,685.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,246.75 : 292,693.50 = 292,693.50 : x
  2. Step 2: Convert to fraction form
    138,246.75/292,693.50 = 292,693.50/x
  3. Step 3: Cross multiply
    138,246.75x = 292,693.50 × 292,693.50
  4. Step 4: Simplify right side
    138,246.75x = 85,669,484,942.25
  5. Step 5: Solve for x
    x = 85,669,484,942.25/138,246.75
  6. Step 6: Final answer
    x = 619,685.34

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.