Home / 326,976.23-490,558.13-137,339.06

Finding the Fourth Proportional to 326,976.23, 490,558.13 and 137,339.06

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Solution

The fourth proportional to 326,976.23, 490,558.13 and 137,339.06 is: 206,047.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,976.23 : 490,558.13 = 137,339.06 : x
  2. Step 2: Convert to fraction form
    326,976.23/490,558.13 = 137,339.06/x
  3. Step 3: Cross multiply
    326,976.23x = 490,558.13 × 137,339.06
  4. Step 4: Simplify right side
    326,976.23x = 67,372,789,310.07
  5. Step 5: Solve for x
    x = 67,372,789,310.07/326,976.23
  6. Step 6: Final answer
    x = 206,047.98

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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.