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Finding the Fourth Proportional to 197,912.80, 296,431.80 and 162,920.80

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Solution

The fourth proportional to 197,912.80, 296,431.80 and 162,920.80 is: 244,021.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,912.80 : 296,431.80 = 162,920.80 : x
  2. Step 2: Convert to fraction form
    197,912.80/296,431.80 = 162,920.80/x
  3. Step 3: Cross multiply
    197,912.80x = 296,431.80 × 162,920.80
  4. Step 4: Simplify right side
    197,912.80x = 48,294,906,001.44
  5. Step 5: Solve for x
    x = 48,294,906,001.44/197,912.80
  6. Step 6: Final answer
    x = 244,021.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.