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Finding the Fourth Proportional to 222,881.25, 307,581.53 and 122,279.25

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Solution

The fourth proportional to 222,881.25, 307,581.53 and 122,279.25 is: 168,748.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,881.25 : 307,581.53 = 122,279.25 : x
  2. Step 2: Convert to fraction form
    222,881.25/307,581.53 = 122,279.25/x
  3. Step 3: Cross multiply
    222,881.25x = 307,581.53 × 122,279.25
  4. Step 4: Simplify right side
    222,881.25x = 37,610,838,190.86
  5. Step 5: Solve for x
    x = 37,610,838,190.86/222,881.25
  6. Step 6: Final answer
    x = 168,748.33

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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.