Home / 220,975.14-331,607.97-121,205.25

Finding the Fourth Proportional to 220,975.14, 331,607.97 and 121,205.25

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Solution

The fourth proportional to 220,975.14, 331,607.97 and 121,205.25 is: 181,887.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,975.14 : 331,607.97 = 121,205.25 : x
  2. Step 2: Convert to fraction form
    220,975.14/331,607.97 = 121,205.25/x
  3. Step 3: Cross multiply
    220,975.14x = 331,607.97 × 121,205.25
  4. Step 4: Simplify right side
    220,975.14x = 40,192,626,905.84
  5. Step 5: Solve for x
    x = 40,192,626,905.84/220,975.14
  6. Step 6: Final answer
    x = 181,887.55

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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.