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Finding the Fourth Proportional to 201,150.20, 300,947.70 and 131,166.20

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Solution

The fourth proportional to 201,150.20, 300,947.70 and 131,166.20 is: 196,242.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,150.20 : 300,947.70 = 131,166.20 : x
  2. Step 2: Convert to fraction form
    201,150.20/300,947.70 = 131,166.20/x
  3. Step 3: Cross multiply
    201,150.20x = 300,947.70 × 131,166.20
  4. Step 4: Simplify right side
    201,150.20x = 39,474,166,207.74
  5. Step 5: Solve for x
    x = 39,474,166,207.74/201,150.20
  6. Step 6: Final answer
    x = 196,242.24

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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.