Home / 228,311.09-342,463.07-78,552.69

Finding the Fourth Proportional to 228,311.09, 342,463.07 and 78,552.69

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Solution

The fourth proportional to 228,311.09, 342,463.07 and 78,552.69 is: 117,827.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,311.09 : 342,463.07 = 78,552.69 : x
  2. Step 2: Convert to fraction form
    228,311.09/342,463.07 = 78,552.69/x
  3. Step 3: Cross multiply
    228,311.09x = 342,463.07 × 78,552.69
  4. Step 4: Simplify right side
    228,311.09x = 26,901,394,286.30
  5. Step 5: Solve for x
    x = 26,901,394,286.30/228,311.09
  6. Step 6: Final answer
    x = 117,827.80

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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.