Home / 198,346.91-297,742.32-131,917.19

Finding the Fourth Proportional to 198,346.91, 297,742.32 and 131,917.19

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Solution

The fourth proportional to 198,346.91, 297,742.32 and 131,917.19 is: 198,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,346.91 : 297,742.32 = 131,917.19 : x
  2. Step 2: Convert to fraction form
    198,346.91/297,742.32 = 131,917.19/x
  3. Step 3: Cross multiply
    198,346.91x = 297,742.32 × 131,917.19
  4. Step 4: Simplify right side
    198,346.91x = 39,277,328,709.77
  5. Step 5: Solve for x
    x = 39,277,328,709.77/198,346.91
  6. Step 6: Final answer
    x = 198,023.40

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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.