Home / 347,267.20-520,081.60-214,556.80

Finding the Fourth Proportional to 347,267.20, 520,081.60 and 214,556.80

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Solution

The fourth proportional to 347,267.20, 520,081.60 and 214,556.80 is: 321,329.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,267.20 : 520,081.60 = 214,556.80 : x
  2. Step 2: Convert to fraction form
    347,267.20/520,081.60 = 214,556.80/x
  3. Step 3: Cross multiply
    347,267.20x = 520,081.60 × 214,556.80
  4. Step 4: Simplify right side
    347,267.20x = 111,587,043,834.88
  5. Step 5: Solve for x
    x = 111,587,043,834.88/347,267.20
  6. Step 6: Final answer
    x = 321,329.06

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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.