Home / 430,668.67-646,029.66-131,171.33

Finding the Fourth Proportional to 430,668.67, 646,029.66 and 131,171.33

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Solution

The fourth proportional to 430,668.67, 646,029.66 and 131,171.33 is: 196,765.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,668.67 : 646,029.66 = 131,171.33 : x
  2. Step 2: Convert to fraction form
    430,668.67/646,029.66 = 131,171.33/x
  3. Step 3: Cross multiply
    430,668.67x = 646,029.66 × 131,171.33
  4. Step 4: Simplify right side
    430,668.67x = 84,740,566,819.43
  5. Step 5: Solve for x
    x = 84,740,566,819.43/430,668.67
  6. Step 6: Final answer
    x = 196,765.11

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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.