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Finding the Fourth Proportional to 201,059.20, 301,588.80 and 122,197.60

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Solution

The fourth proportional to 201,059.20, 301,588.80 and 122,197.60 is: 183,296.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,059.20 : 301,588.80 = 122,197.60 : x
  2. Step 2: Convert to fraction form
    201,059.20/301,588.80 = 122,197.60/x
  3. Step 3: Cross multiply
    201,059.20x = 301,588.80 × 122,197.60
  4. Step 4: Simplify right side
    201,059.20x = 36,853,427,546.88
  5. Step 5: Solve for x
    x = 36,853,427,546.88/201,059.20
  6. Step 6: Final answer
    x = 183,296.40

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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.