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Finding the Fourth Proportional to 220,980, 331,439.76 and 63,222.24

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Solution

The fourth proportional to 220,980, 331,439.76 and 63,222.24 is: 94,824.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,980 : 331,439.76 = 63,222.24 : x
  2. Step 2: Convert to fraction form
    220,980/331,439.76 = 63,222.24/x
  3. Step 3: Cross multiply
    220,980x = 331,439.76 × 63,222.24
  4. Step 4: Simplify right side
    220,980x = 20,954,364,052.26
  5. Step 5: Solve for x
    x = 20,954,364,052.26/220,980
  6. Step 6: Final answer
    x = 94,824.71

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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.