Home / 339,727.23-509,652.27-139,938.57

Finding the Fourth Proportional to 339,727.23, 509,652.27 and 139,938.57

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Solution

The fourth proportional to 339,727.23, 509,652.27 and 139,938.57 is: 209,933.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,727.23 : 509,652.27 = 139,938.57 : x
  2. Step 2: Convert to fraction form
    339,727.23/509,652.27 = 139,938.57/x
  3. Step 3: Cross multiply
    339,727.23x = 509,652.27 × 139,938.57
  4. Step 4: Simplify right side
    339,727.23x = 71,320,009,861.05
  5. Step 5: Solve for x
    x = 71,320,009,861.05/339,727.23
  6. Step 6: Final answer
    x = 209,933.16

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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.