Home / 339,799.08-509,696.32-115,317.55

Finding the Fourth Proportional to 339,799.08, 509,696.32 and 115,317.55

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Solution

The fourth proportional to 339,799.08, 509,696.32 and 115,317.55 is: 172,975.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,799.08 : 509,696.32 = 115,317.55 : x
  2. Step 2: Convert to fraction form
    339,799.08/509,696.32 = 115,317.55/x
  3. Step 3: Cross multiply
    339,799.08x = 509,696.32 × 115,317.55
  4. Step 4: Simplify right side
    339,799.08x = 58,776,930,322.27
  5. Step 5: Solve for x
    x = 58,776,930,322.27/339,799.08
  6. Step 6: Final answer
    x = 172,975.55

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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.