Home / 220,988.64-331,504.33-87,839.02

Finding the Fourth Proportional to 220,988.64, 331,504.33 and 87,839.02

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Solution

The fourth proportional to 220,988.64, 331,504.33 and 87,839.02 is: 131,767.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,988.64 : 331,504.33 = 87,839.02 : x
  2. Step 2: Convert to fraction form
    220,988.64/331,504.33 = 87,839.02/x
  3. Step 3: Cross multiply
    220,988.64x = 331,504.33 × 87,839.02
  4. Step 4: Simplify right side
    220,988.64x = 29,119,015,472.96
  5. Step 5: Solve for x
    x = 29,119,015,472.96/220,988.64
  6. Step 6: Final answer
    x = 131,767.02

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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.