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Finding the Fourth Proportional to 201,749.20, 302,494.20 and 83,467.60

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Solution

The fourth proportional to 201,749.20, 302,494.20 and 83,467.60 is: 125,147.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,749.20 : 302,494.20 = 83,467.60 : x
  2. Step 2: Convert to fraction form
    201,749.20/302,494.20 = 83,467.60/x
  3. Step 3: Cross multiply
    201,749.20x = 302,494.20 × 83,467.60
  4. Step 4: Simplify right side
    201,749.20x = 25,248,464,887.92
  5. Step 5: Solve for x
    x = 25,248,464,887.92/201,749.20
  6. Step 6: Final answer
    x = 125,147.78

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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.