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Finding the Fourth Proportional to 230,939, 346,418.58 and 73,179.08

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Solution

The fourth proportional to 230,939, 346,418.58 and 73,179.08 is: 109,771.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,939 : 346,418.58 = 73,179.08 : x
  2. Step 2: Convert to fraction form
    230,939/346,418.58 = 73,179.08/x
  3. Step 3: Cross multiply
    230,939x = 346,418.58 × 73,179.08
  4. Step 4: Simplify right side
    230,939x = 25,350,592,979.31
  5. Step 5: Solve for x
    x = 25,350,592,979.31/230,939
  6. Step 6: Final answer
    x = 109,771.81

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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.