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Finding the Fourth Proportional to 339,380.60, 508,392.06 and 204,369.80

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Solution

The fourth proportional to 339,380.60, 508,392.06 and 204,369.80 is: 306,145.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,380.60 : 508,392.06 = 204,369.80 : x
  2. Step 2: Convert to fraction form
    339,380.60/508,392.06 = 204,369.80/x
  3. Step 3: Cross multiply
    339,380.60x = 508,392.06 × 204,369.80
  4. Step 4: Simplify right side
    339,380.60x = 103,899,983,623.79
  5. Step 5: Solve for x
    x = 103,899,983,623.79/339,380.60
  6. Step 6: Final answer
    x = 306,145.91

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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.