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Finding the Fourth Proportional to 270,288.63, 372,965.88 and 149,413.53

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Solution

The fourth proportional to 270,288.63, 372,965.88 and 149,413.53 is: 206,172.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,288.63 : 372,965.88 = 149,413.53 : x
  2. Step 2: Convert to fraction form
    270,288.63/372,965.88 = 149,413.53/x
  3. Step 3: Cross multiply
    270,288.63x = 372,965.88 × 149,413.53
  4. Step 4: Simplify right side
    270,288.63x = 55,726,148,700.36
  5. Step 5: Solve for x
    x = 55,726,148,700.36/270,288.63
  6. Step 6: Final answer
    x = 206,172.74

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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.