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Finding the Fourth Proportional to 203,955.10, 305,932.65 and 133,096.30

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Solution

The fourth proportional to 203,955.10, 305,932.65 and 133,096.30 is: 199,644.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,955.10 : 305,932.65 = 133,096.30 : x
  2. Step 2: Convert to fraction form
    203,955.10/305,932.65 = 133,096.30/x
  3. Step 3: Cross multiply
    203,955.10x = 305,932.65 × 133,096.30
  4. Step 4: Simplify right side
    203,955.10x = 40,718,503,764.20
  5. Step 5: Solve for x
    x = 40,718,503,764.20/203,955.10
  6. Step 6: Final answer
    x = 199,644.45

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Similar ratio
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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.