Home / 228,514.30-342,667.23-78,704.80

Finding the Fourth Proportional to 228,514.30, 342,667.23 and 78,704.80

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Solution

The fourth proportional to 228,514.30, 342,667.23 and 78,704.80 is: 118,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,514.30 : 342,667.23 = 78,704.80 : x
  2. Step 2: Convert to fraction form
    228,514.30/342,667.23 = 78,704.80/x
  3. Step 3: Cross multiply
    228,514.30x = 342,667.23 × 78,704.80
  4. Step 4: Simplify right side
    228,514.30x = 26,969,555,803.70
  5. Step 5: Solve for x
    x = 26,969,555,803.70/228,514.30
  6. Step 6: Final answer
    x = 118,021.30

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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.