Home / 312,926.22-469,425.99-99,619.41

Finding the Fourth Proportional to 312,926.22, 469,425.99 and 99,619.41

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Solution

The fourth proportional to 312,926.22, 469,425.99 and 99,619.41 is: 149,440.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,926.22 : 469,425.99 = 99,619.41 : x
  2. Step 2: Convert to fraction form
    312,926.22/469,425.99 = 99,619.41/x
  3. Step 3: Cross multiply
    312,926.22x = 469,425.99 × 99,619.41
  4. Step 4: Simplify right side
    312,926.22x = 46,763,940,162.47
  5. Step 5: Solve for x
    x = 46,763,940,162.47/312,926.22
  6. Step 6: Final answer
    x = 149,440.79

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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.