Home / 214,623.60-321,676.20-109,388.40

Finding the Fourth Proportional to 214,623.60, 321,676.20 and 109,388.40

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Solution

The fourth proportional to 214,623.60, 321,676.20 and 109,388.40 is: 163,950.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,623.60 : 321,676.20 = 109,388.40 : x
  2. Step 2: Convert to fraction form
    214,623.60/321,676.20 = 109,388.40/x
  3. Step 3: Cross multiply
    214,623.60x = 321,676.20 × 109,388.40
  4. Step 4: Simplify right side
    214,623.60x = 35,187,644,836.08
  5. Step 5: Solve for x
    x = 35,187,644,836.08/214,623.60
  6. Step 6: Final answer
    x = 163,950.49

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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.