Home / 231,408.90-347,138.87-73,600.45

Finding the Fourth Proportional to 231,408.90, 347,138.87 and 73,600.45

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Solution

The fourth proportional to 231,408.90, 347,138.87 and 73,600.45 is: 110,408.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,408.90 : 347,138.87 = 73,600.45 : x
  2. Step 2: Convert to fraction form
    231,408.90/347,138.87 = 73,600.45/x
  3. Step 3: Cross multiply
    231,408.90x = 347,138.87 × 73,600.45
  4. Step 4: Simplify right side
    231,408.90x = 25,549,575,808.64
  5. Step 5: Solve for x
    x = 25,549,575,808.64/231,408.90
  6. Step 6: Final answer
    x = 110,408.79

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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.