Home / 326,845.82-490,142.37-127,139.24

Finding the Fourth Proportional to 326,845.82, 490,142.37 and 127,139.24

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Solution

The fourth proportional to 326,845.82, 490,142.37 and 127,139.24 is: 190,659.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,845.82 : 490,142.37 = 127,139.24 : x
  2. Step 2: Convert to fraction form
    326,845.82/490,142.37 = 127,139.24/x
  3. Step 3: Cross multiply
    326,845.82x = 490,142.37 × 127,139.24
  4. Step 4: Simplify right side
    326,845.82x = 62,316,328,413.60
  5. Step 5: Solve for x
    x = 62,316,328,413.60/326,845.82
  6. Step 6: Final answer
    x = 190,659.71

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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.