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Finding the Fourth Proportional to 201,286.60, 301,929.90 and 90,694.60

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Solution

The fourth proportional to 201,286.60, 301,929.90 and 90,694.60 is: 136,041.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,286.60 : 301,929.90 = 90,694.60 : x
  2. Step 2: Convert to fraction form
    201,286.60/301,929.90 = 90,694.60/x
  3. Step 3: Cross multiply
    201,286.60x = 301,929.90 × 90,694.60
  4. Step 4: Simplify right side
    201,286.60x = 27,383,411,508.54
  5. Step 5: Solve for x
    x = 27,383,411,508.54/201,286.60
  6. Step 6: Final answer
    x = 136,041.90

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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.