Home / 214,217.78-321,261.90-64,418.30

Finding the Fourth Proportional to 214,217.78, 321,261.90 and 64,418.30

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Solution

The fourth proportional to 214,217.78, 321,261.90 and 64,418.30 is: 96,607.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,217.78 : 321,261.90 = 64,418.30 : x
  2. Step 2: Convert to fraction form
    214,217.78/321,261.90 = 64,418.30/x
  3. Step 3: Cross multiply
    214,217.78x = 321,261.90 × 64,418.30
  4. Step 4: Simplify right side
    214,217.78x = 20,695,144,809.62
  5. Step 5: Solve for x
    x = 20,695,144,809.62/214,217.78
  6. Step 6: Final answer
    x = 96,607.97

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1.5x scale

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.