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Finding the Fourth Proportional to 347,243.20, 520,087.20 and 268,100.80

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Solution

The fourth proportional to 347,243.20, 520,087.20 and 268,100.80 is: 401,550.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,243.20 : 520,087.20 = 268,100.80 : x
  2. Step 2: Convert to fraction form
    347,243.20/520,087.20 = 268,100.80/x
  3. Step 3: Cross multiply
    347,243.20x = 520,087.20 × 268,100.80
  4. Step 4: Simplify right side
    347,243.20x = 139,435,794,389.76
  5. Step 5: Solve for x
    x = 139,435,794,389.76/347,243.20
  6. Step 6: Final answer
    x = 401,550.83

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1.5x scale

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.