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Finding the Fourth Proportional to 220,218.73, 330,330.04 and 87,099

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Solution

The fourth proportional to 220,218.73, 330,330.04 and 87,099 is: 130,649.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,218.73 : 330,330.04 = 87,099 : x
  2. Step 2: Convert to fraction form
    220,218.73/330,330.04 = 87,099/x
  3. Step 3: Cross multiply
    220,218.73x = 330,330.04 × 87,099
  4. Step 4: Simplify right side
    220,218.73x = 28,771,415,936.21
  5. Step 5: Solve for x
    x = 28,771,415,936.21/220,218.73
  6. Step 6: Final answer
    x = 130,649.27

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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.