Home / 339,941.32-509,911.42-161,908.36

Finding the Fourth Proportional to 339,941.32, 509,911.42 and 161,908.36

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Solution

The fourth proportional to 339,941.32, 509,911.42 and 161,908.36 is: 242,862.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,941.32 : 509,911.42 = 161,908.36 : x
  2. Step 2: Convert to fraction form
    339,941.32/509,911.42 = 161,908.36/x
  3. Step 3: Cross multiply
    339,941.32x = 509,911.42 × 161,908.36
  4. Step 4: Simplify right side
    339,941.32x = 82,558,921,757.47
  5. Step 5: Solve for x
    x = 82,558,921,757.47/339,941.32
  6. Step 6: Final answer
    x = 242,862.27

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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.