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Finding the Fourth Proportional to 221,204.39, 331,807.80 and 54,992.39

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Solution

The fourth proportional to 221,204.39, 331,807.80 and 54,992.39 is: 82,488.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,204.39 : 331,807.80 = 54,992.39 : x
  2. Step 2: Convert to fraction form
    221,204.39/331,807.80 = 54,992.39/x
  3. Step 3: Cross multiply
    221,204.39x = 331,807.80 × 54,992.39
  4. Step 4: Simplify right side
    221,204.39x = 18,246,904,201.58
  5. Step 5: Solve for x
    x = 18,246,904,201.58/221,204.39
  6. Step 6: Final answer
    x = 82,488.89

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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.