Home / 339,936.20-509,977.20-103,302.80

Finding the Fourth Proportional to 339,936.20, 509,977.20 and 103,302.80

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Solution

The fourth proportional to 339,936.20, 509,977.20 and 103,302.80 is: 154,976.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,936.20 : 509,977.20 = 103,302.80 : x
  2. Step 2: Convert to fraction form
    339,936.20/509,977.20 = 103,302.80/x
  3. Step 3: Cross multiply
    339,936.20x = 509,977.20 × 103,302.80
  4. Step 4: Simplify right side
    339,936.20x = 52,682,072,696.16
  5. Step 5: Solve for x
    x = 52,682,072,696.16/339,936.20
  6. Step 6: Final answer
    x = 154,976.35

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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.