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Finding the Fourth Proportional to 179,993, 269,843.70 and 74,890.64

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Solution

The fourth proportional to 179,993, 269,843.70 and 74,890.64 is: 112,275.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,993 : 269,843.70 = 74,890.64 : x
  2. Step 2: Convert to fraction form
    179,993/269,843.70 = 74,890.64/x
  3. Step 3: Cross multiply
    179,993x = 269,843.70 × 74,890.64
  4. Step 4: Simplify right side
    179,993x = 20,208,767,392.97
  5. Step 5: Solve for x
    x = 20,208,767,392.97/179,993
  6. Step 6: Final answer
    x = 112,275.30

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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.