Home / 228,961.05-343,493.88-79,201.20

Finding the Fourth Proportional to 228,961.05, 343,493.88 and 79,201.20

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Solution

The fourth proportional to 228,961.05, 343,493.88 and 79,201.20 is: 118,819.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,961.05 : 343,493.88 = 79,201.20 : x
  2. Step 2: Convert to fraction form
    228,961.05/343,493.88 = 79,201.20/x
  3. Step 3: Cross multiply
    228,961.05x = 343,493.88 × 79,201.20
  4. Step 4: Simplify right side
    228,961.05x = 27,205,127,488.66
  5. Step 5: Solve for x
    x = 27,205,127,488.66/228,961.05
  6. Step 6: Final answer
    x = 118,819.89

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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.