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Finding the Fourth Proportional to 222,479.52, 307,029.60 and 121,877.52

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Solution

The fourth proportional to 222,479.52, 307,029.60 and 121,877.52 is: 168,195.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,479.52 : 307,029.60 = 121,877.52 : x
  2. Step 2: Convert to fraction form
    222,479.52/307,029.60 = 121,877.52/x
  3. Step 3: Cross multiply
    222,479.52x = 307,029.60 × 121,877.52
  4. Step 4: Simplify right side
    222,479.52x = 37,420,006,214.59
  5. Step 5: Solve for x
    x = 37,420,006,214.59/222,479.52
  6. Step 6: Final answer
    x = 168,195.28

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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.