Home / 217,924.32-327,378.58-129,236.01

Finding the Fourth Proportional to 217,924.32, 327,378.58 and 129,236.01

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Solution

The fourth proportional to 217,924.32, 327,378.58 and 129,236.01 is: 194,145.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,924.32 : 327,378.58 = 129,236.01 : x
  2. Step 2: Convert to fraction form
    217,924.32/327,378.58 = 129,236.01/x
  3. Step 3: Cross multiply
    217,924.32x = 327,378.58 × 129,236.01
  4. Step 4: Simplify right side
    217,924.32x = 42,309,101,438.67
  5. Step 5: Solve for x
    x = 42,309,101,438.67/217,924.32
  6. Step 6: Final answer
    x = 194,145.85

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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.