Home / 339,836.90-509,722.38-103,181.63

Finding the Fourth Proportional to 339,836.90, 509,722.38 and 103,181.63

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Solution

The fourth proportional to 339,836.90, 509,722.38 and 103,181.63 is: 154,762.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,836.90 : 509,722.38 = 103,181.63 : x
  2. Step 2: Convert to fraction form
    339,836.90/509,722.38 = 103,181.63/x
  3. Step 3: Cross multiply
    339,836.90x = 509,722.38 × 103,181.63
  4. Step 4: Simplify right side
    339,836.90x = 52,593,983,467.27
  5. Step 5: Solve for x
    x = 52,593,983,467.27/339,836.90
  6. Step 6: Final answer
    x = 154,762.43

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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.