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Finding the Fourth Proportional to 198,969.62, 298,266.81 and 99,035.34

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Solution

The fourth proportional to 198,969.62, 298,266.81 and 99,035.34 is: 148,459.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,969.62 : 298,266.81 = 99,035.34 : x
  2. Step 2: Convert to fraction form
    198,969.62/298,266.81 = 99,035.34/x
  3. Step 3: Cross multiply
    198,969.62x = 298,266.81 × 99,035.34
  4. Step 4: Simplify right side
    198,969.62x = 29,538,954,939.07
  5. Step 5: Solve for x
    x = 29,538,954,939.07/198,969.62
  6. Step 6: Final answer
    x = 148,459.63

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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.