Home / 347,834.20-521,945.70-148,120.60

Finding the Fourth Proportional to 347,834.20, 521,945.70 and 148,120.60

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Solution

The fourth proportional to 347,834.20, 521,945.70 and 148,120.60 is: 222,263.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,834.20 : 521,945.70 = 148,120.60 : x
  2. Step 2: Convert to fraction form
    347,834.20/521,945.70 = 148,120.60/x
  3. Step 3: Cross multiply
    347,834.20x = 521,945.70 × 148,120.60
  4. Step 4: Simplify right side
    347,834.20x = 77,310,910,251.42
  5. Step 5: Solve for x
    x = 77,310,910,251.42/347,834.20
  6. Step 6: Final answer
    x = 222,263.68

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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.