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Finding the Fourth Proportional to 201,648.30, 302,581.80 and 83,331.60

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Solution

The fourth proportional to 201,648.30, 302,581.80 and 83,331.60 is: 125,042.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,648.30 : 302,581.80 = 83,331.60 : x
  2. Step 2: Convert to fraction form
    201,648.30/302,581.80 = 83,331.60/x
  3. Step 3: Cross multiply
    201,648.30x = 302,581.80 × 83,331.60
  4. Step 4: Simplify right side
    201,648.30x = 25,214,625,524.88
  5. Step 5: Solve for x
    x = 25,214,625,524.88/201,648.30
  6. Step 6: Final answer
    x = 125,042.59

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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.