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Finding the Fourth Proportional to 198,571.56, 297,143.82 and 145,850.28

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Solution

The fourth proportional to 198,571.56, 297,143.82 and 145,850.28 is: 218,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,571.56 : 297,143.82 = 145,850.28 : x
  2. Step 2: Convert to fraction form
    198,571.56/297,143.82 = 145,850.28/x
  3. Step 3: Cross multiply
    198,571.56x = 297,143.82 × 145,850.28
  4. Step 4: Simplify right side
    198,571.56x = 43,338,509,347.27
  5. Step 5: Solve for x
    x = 43,338,509,347.27/198,571.56
  6. Step 6: Final answer
    x = 218,251.34

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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.