Home / 213,975.45-321,016.49-64,218.51

Finding the Fourth Proportional to 213,975.45, 321,016.49 and 64,218.51

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Solution

The fourth proportional to 213,975.45, 321,016.49 and 64,218.51 is: 96,343.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,975.45 : 321,016.49 = 64,218.51 : x
  2. Step 2: Convert to fraction form
    213,975.45/321,016.49 = 64,218.51/x
  3. Step 3: Cross multiply
    213,975.45x = 321,016.49 × 64,218.51
  4. Step 4: Simplify right side
    213,975.45x = 20,615,200,352.14
  5. Step 5: Solve for x
    x = 20,615,200,352.14/213,975.45
  6. Step 6: Final answer
    x = 96,343.76

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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.