Home / 339,378.43-509,178.38-161,862.37

Finding the Fourth Proportional to 339,378.43, 509,178.38 and 161,862.37

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Solution

The fourth proportional to 339,378.43, 509,178.38 and 161,862.37 is: 242,846.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,378.43 : 509,178.38 = 161,862.37 : x
  2. Step 2: Convert to fraction form
    339,378.43/509,178.38 = 161,862.37/x
  3. Step 3: Cross multiply
    339,378.43x = 509,178.38 × 161,862.37
  4. Step 4: Simplify right side
    339,378.43x = 82,416,819,803.19
  5. Step 5: Solve for x
    x = 82,416,819,803.19/339,378.43
  6. Step 6: Final answer
    x = 242,846.37

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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.