Home / 342,236.45-513,389.89-129,183.82

Finding the Fourth Proportional to 342,236.45, 513,389.89 and 129,183.82

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Solution

The fourth proportional to 342,236.45, 513,389.89 and 129,183.82 is: 193,789.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,236.45 : 513,389.89 = 129,183.82 : x
  2. Step 2: Convert to fraction form
    342,236.45/513,389.89 = 129,183.82/x
  3. Step 3: Cross multiply
    342,236.45x = 513,389.89 × 129,183.82
  4. Step 4: Simplify right side
    342,236.45x = 66,321,664,572.63
  5. Step 5: Solve for x
    x = 66,321,664,572.63/342,236.45
  6. Step 6: Final answer
    x = 193,789.02

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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.