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Finding the Fourth Proportional to 198,847.46, 298,317.90 and 65,727.72

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Solution

The fourth proportional to 198,847.46, 298,317.90 and 65,727.72 is: 98,607.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,847.46 : 298,317.90 = 65,727.72 : x
  2. Step 2: Convert to fraction form
    198,847.46/298,317.90 = 65,727.72/x
  3. Step 3: Cross multiply
    198,847.46x = 298,317.90 × 65,727.72
  4. Step 4: Simplify right side
    198,847.46x = 19,607,753,581.96
  5. Step 5: Solve for x
    x = 19,607,753,581.96/198,847.46
  6. Step 6: Final answer
    x = 98,607.01

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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.