Home / 231,627.20-347,246.40-120,819.20

Finding the Fourth Proportional to 231,627.20, 347,246.40 and 120,819.20

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Solution

The fourth proportional to 231,627.20, 347,246.40 and 120,819.20 is: 181,127.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,627.20 : 347,246.40 = 120,819.20 : x
  2. Step 2: Convert to fraction form
    231,627.20/347,246.40 = 120,819.20/x
  3. Step 3: Cross multiply
    231,627.20x = 347,246.40 × 120,819.20
  4. Step 4: Simplify right side
    231,627.20x = 41,954,032,250.88
  5. Step 5: Solve for x
    x = 41,954,032,250.88/231,627.20
  6. Step 6: Final answer
    x = 181,127.40

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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.