Home / 198,910.64-298,365.96-74,261.36

Finding the Fourth Proportional to 198,910.64, 298,365.96 and 74,261.36

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Solution

The fourth proportional to 198,910.64, 298,365.96 and 74,261.36 is: 111,392.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,910.64 : 298,365.96 = 74,261.36 : x
  2. Step 2: Convert to fraction form
    198,910.64/298,365.96 = 74,261.36/x
  3. Step 3: Cross multiply
    198,910.64x = 298,365.96 × 74,261.36
  4. Step 4: Simplify right side
    198,910.64x = 22,157,061,967.31
  5. Step 5: Solve for x
    x = 22,157,061,967.31/198,910.64
  6. Step 6: Final answer
    x = 111,392.04

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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.