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Finding the Fourth Proportional to 198,999.44, 298,498.48 and 80,670.46

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Solution

The fourth proportional to 198,999.44, 298,498.48 and 80,670.46 is: 121,005.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,999.44 : 298,498.48 = 80,670.46 : x
  2. Step 2: Convert to fraction form
    198,999.44/298,498.48 = 80,670.46/x
  3. Step 3: Cross multiply
    198,999.44x = 298,498.48 × 80,670.46
  4. Step 4: Simplify right side
    198,999.44x = 24,080,009,690.90
  5. Step 5: Solve for x
    x = 24,080,009,690.90/198,999.44
  6. Step 6: Final answer
    x = 121,005.41

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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.