Home / 339,839.15-509,725.76-103,183.88

Finding the Fourth Proportional to 339,839.15, 509,725.76 and 103,183.88

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Solution

The fourth proportional to 339,839.15, 509,725.76 and 103,183.88 is: 154,765.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,839.15 : 509,725.76 = 103,183.88 : x
  2. Step 2: Convert to fraction form
    339,839.15/509,725.76 = 103,183.88/x
  3. Step 3: Cross multiply
    339,839.15x = 509,725.76 × 103,183.88
  4. Step 4: Simplify right side
    339,839.15x = 52,595,478,588.20
  5. Step 5: Solve for x
    x = 52,595,478,588.20/339,839.15
  6. Step 6: Final answer
    x = 154,765.80

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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.