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Finding the Fourth Proportional to 347,103.78, 520,711.11 and 107,161.26

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Solution

The fourth proportional to 347,103.78, 520,711.11 and 107,161.26 is: 160,759.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,103.78 : 520,711.11 = 107,161.26 : x
  2. Step 2: Convert to fraction form
    347,103.78/520,711.11 = 107,161.26/x
  3. Step 3: Cross multiply
    347,103.78x = 520,711.11 × 107,161.26
  4. Step 4: Simplify right side
    347,103.78x = 55,800,058,643.60
  5. Step 5: Solve for x
    x = 55,800,058,643.60/347,103.78
  6. Step 6: Final answer
    x = 160,759.01

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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.