Home / 404,845.08-606,844.26-138,516.12

Finding the Fourth Proportional to 404,845.08, 606,844.26 and 138,516.12

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Solution

The fourth proportional to 404,845.08, 606,844.26 and 138,516.12 is: 207,629.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,845.08 : 606,844.26 = 138,516.12 : x
  2. Step 2: Convert to fraction form
    404,845.08/606,844.26 = 138,516.12/x
  3. Step 3: Cross multiply
    404,845.08x = 606,844.26 × 138,516.12
  4. Step 4: Simplify right side
    404,845.08x = 84,057,712,339.47
  5. Step 5: Solve for x
    x = 84,057,712,339.47/404,845.08
  6. Step 6: Final answer
    x = 207,629.33

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1.5x scale

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.