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Finding the Fourth Proportional to 298,177.81, 447,216.50 and 84,930.73

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Solution

The fourth proportional to 298,177.81, 447,216.50 and 84,930.73 is: 127,381.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,177.81 : 447,216.50 = 84,930.73 : x
  2. Step 2: Convert to fraction form
    298,177.81/447,216.50 = 84,930.73/x
  3. Step 3: Cross multiply
    298,177.81x = 447,216.50 × 84,930.73
  4. Step 4: Simplify right side
    298,177.81x = 37,982,423,388.39
  5. Step 5: Solve for x
    x = 37,982,423,388.39/298,177.81
  6. Step 6: Final answer
    x = 127,381.79

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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.