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Finding the Fourth Proportional to 203,229.65, 280,503.57 and 135,249.48

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Solution

The fourth proportional to 203,229.65, 280,503.57 and 135,249.48 is: 186,675.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,229.65 : 280,503.57 = 135,249.48 : x
  2. Step 2: Convert to fraction form
    203,229.65/280,503.57 = 135,249.48/x
  3. Step 3: Cross multiply
    203,229.65x = 280,503.57 × 135,249.48
  4. Step 4: Simplify right side
    203,229.65x = 37,937,961,980.64
  5. Step 5: Solve for x
    x = 37,937,961,980.64/203,229.65
  6. Step 6: Final answer
    x = 186,675.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.