Home / 231,828.20-347,742.30-91,514.60

Finding the Fourth Proportional to 231,828.20, 347,742.30 and 91,514.60

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Solution

The fourth proportional to 231,828.20, 347,742.30 and 91,514.60 is: 137,271.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,828.20 : 347,742.30 = 91,514.60 : x
  2. Step 2: Convert to fraction form
    231,828.20/347,742.30 = 91,514.60/x
  3. Step 3: Cross multiply
    231,828.20x = 347,742.30 × 91,514.60
  4. Step 4: Simplify right side
    231,828.20x = 31,823,497,487.58
  5. Step 5: Solve for x
    x = 31,823,497,487.58/231,828.20
  6. Step 6: Final answer
    x = 137,271.90

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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.