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Finding the Fourth Proportional to 226,384, 339,058.92 and 108,139

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Solution

The fourth proportional to 226,384, 339,058.92 and 108,139 is: 161,961.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,384 : 339,058.92 = 108,139 : x
  2. Step 2: Convert to fraction form
    226,384/339,058.92 = 108,139/x
  3. Step 3: Cross multiply
    226,384x = 339,058.92 × 108,139
  4. Step 4: Simplify right side
    226,384x = 36,665,492,549.88
  5. Step 5: Solve for x
    x = 36,665,492,549.88/226,384
  6. Step 6: Final answer
    x = 161,961.50

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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.