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Finding the Fourth Proportional to 202,519.60, 303,487.80 and 90,107.80

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Solution

The fourth proportional to 202,519.60, 303,487.80 and 90,107.80 is: 135,031.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,519.60 : 303,487.80 = 90,107.80 : x
  2. Step 2: Convert to fraction form
    202,519.60/303,487.80 = 90,107.80/x
  3. Step 3: Cross multiply
    202,519.60x = 303,487.80 × 90,107.80
  4. Step 4: Simplify right side
    202,519.60x = 27,346,617,984.84
  5. Step 5: Solve for x
    x = 27,346,617,984.84/202,519.60
  6. Step 6: Final answer
    x = 135,031.96

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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.