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Finding the Fourth Proportional to 201,615.60, 302,131.80 and 89,203.80

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Solution

The fourth proportional to 201,615.60, 302,131.80 and 89,203.80 is: 133,676.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,615.60 : 302,131.80 = 89,203.80 : x
  2. Step 2: Convert to fraction form
    201,615.60/302,131.80 = 89,203.80/x
  3. Step 3: Cross multiply
    201,615.60x = 302,131.80 × 89,203.80
  4. Step 4: Simplify right side
    201,615.60x = 26,951,304,660.84
  5. Step 5: Solve for x
    x = 26,951,304,660.84/201,615.60
  6. Step 6: Final answer
    x = 133,676.68

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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.