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Finding the Fourth Proportional to 198,173.16, 297,258.92 and 71,783.82

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Solution

The fourth proportional to 198,173.16, 297,258.92 and 71,783.82 is: 107,675.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,173.16 : 297,258.92 = 71,783.82 : x
  2. Step 2: Convert to fraction form
    198,173.16/297,258.92 = 71,783.82/x
  3. Step 3: Cross multiply
    198,173.16x = 297,258.92 × 71,783.82
  4. Step 4: Simplify right side
    198,173.16x = 21,338,380,806.67
  5. Step 5: Solve for x
    x = 21,338,380,806.67/198,173.16
  6. Step 6: Final answer
    x = 107,675.43

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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.