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Finding the Fourth Proportional to 347,174.45, 520,757.91 and 263,448.80

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Solution

The fourth proportional to 347,174.45, 520,757.91 and 263,448.80 is: 395,170.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,174.45 : 520,757.91 = 263,448.80 : x
  2. Step 2: Convert to fraction form
    347,174.45/520,757.91 = 263,448.80/x
  3. Step 3: Cross multiply
    347,174.45x = 520,757.91 × 263,448.80
  4. Step 4: Simplify right side
    347,174.45x = 137,193,048,758.32
  5. Step 5: Solve for x
    x = 137,193,048,758.32/347,174.45
  6. Step 6: Final answer
    x = 395,170.34

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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.