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Finding the Fourth Proportional to 339,799.80, 509,570.10 and 103,063.80

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Solution

The fourth proportional to 339,799.80, 509,570.10 and 103,063.80 is: 154,556.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,799.80 : 509,570.10 = 103,063.80 : x
  2. Step 2: Convert to fraction form
    339,799.80/509,570.10 = 103,063.80/x
  3. Step 3: Cross multiply
    339,799.80x = 509,570.10 × 103,063.80
  4. Step 4: Simplify right side
    339,799.80x = 52,518,230,872.38
  5. Step 5: Solve for x
    x = 52,518,230,872.38/339,799.80
  6. Step 6: Final answer
    x = 154,556.39

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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.