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Finding the Fourth Proportional to 226,503.80, 339,908.78 and 86,258.76

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Solution

The fourth proportional to 226,503.80, 339,908.78 and 86,258.76 is: 129,446.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,503.80 : 339,908.78 = 86,258.76 : x
  2. Step 2: Convert to fraction form
    226,503.80/339,908.78 = 86,258.76/x
  3. Step 3: Cross multiply
    226,503.80x = 339,908.78 × 86,258.76
  4. Step 4: Simplify right side
    226,503.80x = 29,320,109,875.91
  5. Step 5: Solve for x
    x = 29,320,109,875.91/226,503.80
  6. Step 6: Final answer
    x = 129,446.44

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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.