Home / 239,413.38-330,392.70-131,987.27

Finding the Fourth Proportional to 239,413.38, 330,392.70 and 131,987.27

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Solution

The fourth proportional to 239,413.38, 330,392.70 and 131,987.27 is: 182,143.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,413.38 : 330,392.70 = 131,987.27 : x
  2. Step 2: Convert to fraction form
    239,413.38/330,392.70 = 131,987.27/x
  3. Step 3: Cross multiply
    239,413.38x = 330,392.70 × 131,987.27
  4. Step 4: Simplify right side
    239,413.38x = 43,607,628,848.97
  5. Step 5: Solve for x
    x = 43,607,628,848.97/239,413.38
  6. Step 6: Final answer
    x = 182,143.66

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Double scale
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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.