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Finding the Fourth Proportional to 303,797.65, 455,300.11 and 219,840.61

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Solution

The fourth proportional to 303,797.65, 455,300.11 and 219,840.61 is: 329,474.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,797.65 : 455,300.11 = 219,840.61 : x
  2. Step 2: Convert to fraction form
    303,797.65/455,300.11 = 219,840.61/x
  3. Step 3: Cross multiply
    303,797.65x = 455,300.11 × 219,840.61
  4. Step 4: Simplify right side
    303,797.65x = 100,093,451,089.37
  5. Step 5: Solve for x
    x = 100,093,451,089.37/303,797.65
  6. Step 6: Final answer
    x = 329,474.08

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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.