Home / 220,971.39-331,602.36-121,201.50

Finding the Fourth Proportional to 220,971.39, 331,602.36 and 121,201.50

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Solution

The fourth proportional to 220,971.39, 331,602.36 and 121,201.50 is: 181,881.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,971.39 : 331,602.36 = 121,201.50 : x
  2. Step 2: Convert to fraction form
    220,971.39/331,602.36 = 121,201.50/x
  3. Step 3: Cross multiply
    220,971.39x = 331,602.36 × 121,201.50
  4. Step 4: Simplify right side
    220,971.39x = 40,190,703,435.54
  5. Step 5: Solve for x
    x = 40,190,703,435.54/220,971.39
  6. Step 6: Final answer
    x = 181,881.93

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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.