Home / 228,067.08-342,141.60-78,268.56

Finding the Fourth Proportional to 228,067.08, 342,141.60 and 78,268.56

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Solution

The fourth proportional to 228,067.08, 342,141.60 and 78,268.56 is: 117,416.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,067.08 : 342,141.60 = 78,268.56 : x
  2. Step 2: Convert to fraction form
    228,067.08/342,141.60 = 78,268.56/x
  3. Step 3: Cross multiply
    228,067.08x = 342,141.60 × 78,268.56
  4. Step 4: Simplify right side
    228,067.08x = 26,778,930,348.10
  5. Step 5: Solve for x
    x = 26,778,930,348.10/228,067.08
  6. Step 6: Final answer
    x = 117,416.90

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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.