Home / 229,139.93-343,665.39-115,257.38

Finding the Fourth Proportional to 229,139.93, 343,665.39 and 115,257.38

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Solution

The fourth proportional to 229,139.93, 343,665.39 and 115,257.38 is: 172,863.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,139.93 : 343,665.39 = 115,257.38 : x
  2. Step 2: Convert to fraction form
    229,139.93/343,665.39 = 115,257.38/x
  3. Step 3: Cross multiply
    229,139.93x = 343,665.39 × 115,257.38
  4. Step 4: Simplify right side
    229,139.93x = 39,609,970,729.75
  5. Step 5: Solve for x
    x = 39,609,970,729.75/229,139.93
  6. Step 6: Final answer
    x = 172,863.67

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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.