Home / 228,067.20-342,002.91-78,322.50

Finding the Fourth Proportional to 228,067.20, 342,002.91 and 78,322.50

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Solution

The fourth proportional to 228,067.20, 342,002.91 and 78,322.50 is: 117,450.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,067.20 : 342,002.91 = 78,322.50 : x
  2. Step 2: Convert to fraction form
    228,067.20/342,002.91 = 78,322.50/x
  3. Step 3: Cross multiply
    228,067.20x = 342,002.91 × 78,322.50
  4. Step 4: Simplify right side
    228,067.20x = 26,786,522,918.48
  5. Step 5: Solve for x
    x = 26,786,522,918.48/228,067.20
  6. Step 6: Final answer
    x = 117,450.13

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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.