Home / 220,556.91-330,944.82-87,434.22

Finding the Fourth Proportional to 220,556.91, 330,944.82 and 87,434.22

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Solution

The fourth proportional to 220,556.91, 330,944.82 and 87,434.22 is: 131,194.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,556.91 : 330,944.82 = 87,434.22 : x
  2. Step 2: Convert to fraction form
    220,556.91/330,944.82 = 87,434.22/x
  3. Step 3: Cross multiply
    220,556.91x = 330,944.82 × 87,434.22
  4. Step 4: Simplify right side
    220,556.91x = 28,935,902,199.74
  5. Step 5: Solve for x
    x = 28,935,902,199.74/220,556.91
  6. Step 6: Final answer
    x = 131,194.72

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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.