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Finding the Fourth Proportional to 201,240.80, 301,861.20 and 107,928.80

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Solution

The fourth proportional to 201,240.80, 301,861.20 and 107,928.80 is: 161,893.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,240.80 : 301,861.20 = 107,928.80 : x
  2. Step 2: Convert to fraction form
    201,240.80/301,861.20 = 107,928.80/x
  3. Step 3: Cross multiply
    201,240.80x = 301,861.20 × 107,928.80
  4. Step 4: Simplify right side
    201,240.80x = 32,579,517,082.56
  5. Step 5: Solve for x
    x = 32,579,517,082.56/201,240.80
  6. Step 6: Final answer
    x = 161,893.20

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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.