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Finding the Fourth Proportional to 203,517.34, 280,609.86 and 131,871.22

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Solution

The fourth proportional to 203,517.34, 280,609.86 and 131,871.22 is: 181,824.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,517.34 : 280,609.86 = 131,871.22 : x
  2. Step 2: Convert to fraction form
    203,517.34/280,609.86 = 131,871.22/x
  3. Step 3: Cross multiply
    203,517.34x = 280,609.86 × 131,871.22
  4. Step 4: Simplify right side
    203,517.34x = 37,004,364,582.23
  5. Step 5: Solve for x
    x = 37,004,364,582.23/203,517.34
  6. Step 6: Final answer
    x = 181,824.14

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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.