Home / 339,836.08-509,435.70-115,039.24

Finding the Fourth Proportional to 339,836.08, 509,435.70 and 115,039.24

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Solution

The fourth proportional to 339,836.08, 509,435.70 and 115,039.24 is: 172,451.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,836.08 : 509,435.70 = 115,039.24 : x
  2. Step 2: Convert to fraction form
    339,836.08/509,435.70 = 115,039.24/x
  3. Step 3: Cross multiply
    339,836.08x = 509,435.70 × 115,039.24
  4. Step 4: Simplify right side
    339,836.08x = 58,605,095,756.87
  5. Step 5: Solve for x
    x = 58,605,095,756.87/339,836.08
  6. Step 6: Final answer
    x = 172,451.07

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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.