Home / 238,710.38-329,413.72-131,280.40

Finding the Fourth Proportional to 238,710.38, 329,413.72 and 131,280.40

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Solution

The fourth proportional to 238,710.38, 329,413.72 and 131,280.40 is: 181,163.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,710.38 : 329,413.72 = 131,280.40 : x
  2. Step 2: Convert to fraction form
    238,710.38/329,413.72 = 131,280.40/x
  3. Step 3: Cross multiply
    238,710.38x = 329,413.72 × 131,280.40
  4. Step 4: Simplify right side
    238,710.38x = 43,245,564,927.09
  5. Step 5: Solve for x
    x = 43,245,564,927.09/238,710.38
  6. Step 6: Final answer
    x = 181,163.32

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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.