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Finding the Fourth Proportional to 222,480, 307,028.88 and 121,884.48

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Solution

The fourth proportional to 222,480, 307,028.88 and 121,884.48 is: 168,204.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,480 : 307,028.88 = 121,884.48 : x
  2. Step 2: Convert to fraction form
    222,480/307,028.88 = 121,884.48/x
  3. Step 3: Cross multiply
    222,480x = 307,028.88 × 121,884.48
  4. Step 4: Simplify right side
    222,480x = 37,422,055,383.78
  5. Step 5: Solve for x
    x = 37,422,055,383.78/222,480
  6. Step 6: Final answer
    x = 168,204.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.