Home / 339,942.32-509,912.92-161,909.36

Finding the Fourth Proportional to 339,942.32, 509,912.92 and 161,909.36

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Solution

The fourth proportional to 339,942.32, 509,912.92 and 161,909.36 is: 242,863.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,942.32 : 509,912.92 = 161,909.36 : x
  2. Step 2: Convert to fraction form
    339,942.32/509,912.92 = 161,909.36/x
  3. Step 3: Cross multiply
    339,942.32x = 509,912.92 × 161,909.36
  4. Step 4: Simplify right side
    339,942.32x = 82,559,674,532.93
  5. Step 5: Solve for x
    x = 82,559,674,532.93/339,942.32
  6. Step 6: Final answer
    x = 242,863.77

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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.