Home / 231,408.28-347,164.52-81,659.24

Finding the Fourth Proportional to 231,408.28, 347,164.52 and 81,659.24

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Solution

The fourth proportional to 231,408.28, 347,164.52 and 81,659.24 is: 122,507.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,408.28 : 347,164.52 = 81,659.24 : x
  2. Step 2: Convert to fraction form
    231,408.28/347,164.52 = 81,659.24/x
  3. Step 3: Cross multiply
    231,408.28x = 347,164.52 × 81,659.24
  4. Step 4: Simplify right side
    231,408.28x = 28,349,190,858.16
  5. Step 5: Solve for x
    x = 28,349,190,858.16/231,408.28
  6. Step 6: Final answer
    x = 122,507.25

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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.