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Finding the Fourth Proportional to 404,130.30, 606,195.45 and 137,826.60

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Solution

The fourth proportional to 404,130.30, 606,195.45 and 137,826.60 is: 206,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,130.30 : 606,195.45 = 137,826.60 : x
  2. Step 2: Convert to fraction form
    404,130.30/606,195.45 = 137,826.60/x
  3. Step 3: Cross multiply
    404,130.30x = 606,195.45 × 137,826.60
  4. Step 4: Simplify right side
    404,130.30x = 83,549,857,808.97
  5. Step 5: Solve for x
    x = 83,549,857,808.97/404,130.30
  6. Step 6: Final answer
    x = 206,739.90

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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.