Home / 347,150.80-520,721.34-136,790.56

Finding the Fourth Proportional to 347,150.80, 520,721.34 and 136,790.56

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Solution

The fourth proportional to 347,150.80, 520,721.34 and 136,790.56 is: 205,183.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,150.80 : 520,721.34 = 136,790.56 : x
  2. Step 2: Convert to fraction form
    347,150.80/520,721.34 = 136,790.56/x
  3. Step 3: Cross multiply
    347,150.80x = 520,721.34 × 136,790.56
  4. Step 4: Simplify right side
    347,150.80x = 71,229,763,702.55
  5. Step 5: Solve for x
    x = 71,229,763,702.55/347,150.80
  6. Step 6: Final answer
    x = 205,183.92

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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.