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Finding the Fourth Proportional to 181,879.28, 250,993.88 and 105,413.20

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Solution

The fourth proportional to 181,879.28, 250,993.88 and 105,413.20 is: 145,470.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,879.28 : 250,993.88 = 105,413.20 : x
  2. Step 2: Convert to fraction form
    181,879.28/250,993.88 = 105,413.20/x
  3. Step 3: Cross multiply
    181,879.28x = 250,993.88 × 105,413.20
  4. Step 4: Simplify right side
    181,879.28x = 26,458,068,071.22
  5. Step 5: Solve for x
    x = 26,458,068,071.22/181,879.28
  6. Step 6: Final answer
    x = 145,470.49

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1.5x scale

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.