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Finding the Fourth Proportional to 339,378.60, 508,389.06 and 204,367.80

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Solution

The fourth proportional to 339,378.60, 508,389.06 and 204,367.80 is: 306,142.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,378.60 : 508,389.06 = 204,367.80 : x
  2. Step 2: Convert to fraction form
    339,378.60/508,389.06 = 204,367.80/x
  3. Step 3: Cross multiply
    339,378.60x = 508,389.06 × 204,367.80
  4. Step 4: Simplify right side
    339,378.60x = 103,898,353,736.27
  5. Step 5: Solve for x
    x = 103,898,353,736.27/339,378.60
  6. Step 6: Final answer
    x = 306,142.91

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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.