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Finding the Fourth Proportional to 201,701.10, 302,551.65 and 131,198.70

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Solution

The fourth proportional to 201,701.10, 302,551.65 and 131,198.70 is: 196,798.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,701.10 : 302,551.65 = 131,198.70 : x
  2. Step 2: Convert to fraction form
    201,701.10/302,551.65 = 131,198.70/x
  3. Step 3: Cross multiply
    201,701.10x = 302,551.65 × 131,198.70
  4. Step 4: Simplify right side
    201,701.10x = 39,694,383,162.86
  5. Step 5: Solve for x
    x = 39,694,383,162.86/201,701.10
  6. Step 6: Final answer
    x = 196,798.05

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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.