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Finding the Fourth Proportional to 372,413.25, 513,930.29 and 202,648.59

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Solution

The fourth proportional to 372,413.25, 513,930.29 and 202,648.59 is: 279,655.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,413.25 : 513,930.29 = 202,648.59 : x
  2. Step 2: Convert to fraction form
    372,413.25/513,930.29 = 202,648.59/x
  3. Step 3: Cross multiply
    372,413.25x = 513,930.29 × 202,648.59
  4. Step 4: Simplify right side
    372,413.25x = 104,147,247,613.55
  5. Step 5: Solve for x
    x = 104,147,247,613.55/372,413.25
  6. Step 6: Final answer
    x = 279,655.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.