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Finding the Third Proportional to 134,919 and 198,004.50

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Solution

The third proportional to 134,919 and 198,004.50 is: 290,587.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,919 : 198,004.50 = 198,004.50 : x
  2. Step 2: Convert to fraction form
    134,919/198,004.50 = 198,004.50/x
  3. Step 3: Cross multiply
    134,919x = 198,004.50 × 198,004.50
  4. Step 4: Simplify right side
    134,919x = 39,205,782,020.25
  5. Step 5: Solve for x
    x = 39,205,782,020.25/134,919
  6. Step 6: Final answer
    x = 290,587.55

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.