Home / 231,408.63-347,120.51-79,604.15

Finding the Fourth Proportional to 231,408.63, 347,120.51 and 79,604.15

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Solution

The fourth proportional to 231,408.63, 347,120.51 and 79,604.15 is: 119,408.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,408.63 : 347,120.51 = 79,604.15 : x
  2. Step 2: Convert to fraction form
    231,408.63/347,120.51 = 79,604.15/x
  3. Step 3: Cross multiply
    231,408.63x = 347,120.51 × 79,604.15
  4. Step 4: Simplify right side
    231,408.63x = 27,632,231,012.49
  5. Step 5: Solve for x
    x = 27,632,231,012.49/231,408.63
  6. Step 6: Final answer
    x = 119,408.82

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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.