Home / 214,209.72-321,330.60-64,438.02

Finding the Fourth Proportional to 214,209.72, 321,330.60 and 64,438.02

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Solution

The fourth proportional to 214,209.72, 321,330.60 and 64,438.02 is: 96,661.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,209.72 : 321,330.60 = 64,438.02 : x
  2. Step 2: Convert to fraction form
    214,209.72/321,330.60 = 64,438.02/x
  3. Step 3: Cross multiply
    214,209.72x = 321,330.60 × 64,438.02
  4. Step 4: Simplify right side
    214,209.72x = 20,705,907,629.41
  5. Step 5: Solve for x
    x = 20,705,907,629.41/214,209.72
  6. Step 6: Final answer
    x = 96,661.85

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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.