Home / 285,413.71-393,865.99-158,086.57

Finding the Fourth Proportional to 285,413.71, 393,865.99 and 158,086.57

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Solution

The fourth proportional to 285,413.71, 393,865.99 and 158,086.57 is: 218,156.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,413.71 : 393,865.99 = 158,086.57 : x
  2. Step 2: Convert to fraction form
    285,413.71/393,865.99 = 158,086.57/x
  3. Step 3: Cross multiply
    285,413.71x = 393,865.99 × 158,086.57
  4. Step 4: Simplify right side
    285,413.71x = 62,264,923,398.75
  5. Step 5: Solve for x
    x = 62,264,923,398.75/285,413.71
  6. Step 6: Final answer
    x = 218,156.74

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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.