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Finding the Fourth Proportional to 339,841.91, 509,729.88 and 103,186.64

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Solution

The fourth proportional to 339,841.91, 509,729.88 and 103,186.64 is: 154,769.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,841.91 : 509,729.88 = 103,186.64 : x
  2. Step 2: Convert to fraction form
    339,841.91/509,729.88 = 103,186.64/x
  3. Step 3: Cross multiply
    339,841.91x = 509,729.88 × 103,186.64
  4. Step 4: Simplify right side
    339,841.91x = 52,597,313,624.80
  5. Step 5: Solve for x
    x = 52,597,313,624.80/339,841.91
  6. Step 6: Final answer
    x = 154,769.94

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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.