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Finding the Fourth Proportional to 222,149.76, 333,256.26 and 81,897.42

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Solution

The fourth proportional to 222,149.76, 333,256.26 and 81,897.42 is: 122,857.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,149.76 : 333,256.26 = 81,897.42 : x
  2. Step 2: Convert to fraction form
    222,149.76/333,256.26 = 81,897.42/x
  3. Step 3: Cross multiply
    222,149.76x = 333,256.26 × 81,897.42
  4. Step 4: Simplify right side
    222,149.76x = 27,292,827,892.85
  5. Step 5: Solve for x
    x = 27,292,827,892.85/222,149.76
  6. Step 6: Final answer
    x = 122,857.79

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1.5x scale

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.