Home / 231,413.85-319,380.69-129,444.98

Finding the Fourth Proportional to 231,413.85, 319,380.69 and 129,444.98

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Solution

The fourth proportional to 231,413.85, 319,380.69 and 129,444.98 is: 178,650.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,413.85 : 319,380.69 = 129,444.98 : x
  2. Step 2: Convert to fraction form
    231,413.85/319,380.69 = 129,444.98/x
  3. Step 3: Cross multiply
    231,413.85x = 319,380.69 × 129,444.98
  4. Step 4: Simplify right side
    231,413.85x = 41,342,225,432.53
  5. Step 5: Solve for x
    x = 41,342,225,432.53/231,413.85
  6. Step 6: Final answer
    x = 178,650.61

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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.