Home / 198,807.03-298,158.18-135,615.38

Finding the Fourth Proportional to 198,807.03, 298,158.18 and 135,615.38

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Solution

The fourth proportional to 198,807.03, 298,158.18 and 135,615.38 is: 203,387.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,807.03 : 298,158.18 = 135,615.38 : x
  2. Step 2: Convert to fraction form
    198,807.03/298,158.18 = 135,615.38/x
  3. Step 3: Cross multiply
    198,807.03x = 298,158.18 × 135,615.38
  4. Step 4: Simplify right side
    198,807.03x = 40,434,833,390.02
  5. Step 5: Solve for x
    x = 40,434,833,390.02/198,807.03
  6. Step 6: Final answer
    x = 203,387.34

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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.