Home / 341,780.23-512,668.18-139,375.54

Finding the Fourth Proportional to 341,780.23, 512,668.18 and 139,375.54

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Solution

The fourth proportional to 341,780.23, 512,668.18 and 139,375.54 is: 209,062.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,780.23 : 512,668.18 = 139,375.54 : x
  2. Step 2: Convert to fraction form
    341,780.23/512,668.18 = 139,375.54/x
  3. Step 3: Cross multiply
    341,780.23x = 512,668.18 × 139,375.54
  4. Step 4: Simplify right side
    341,780.23x = 71,453,404,428.32
  5. Step 5: Solve for x
    x = 71,453,404,428.32/341,780.23
  6. Step 6: Final answer
    x = 209,062.43

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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.