Home / 281,738.13-388,802.07-154,413.42

Finding the Fourth Proportional to 281,738.13, 388,802.07 and 154,413.42

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Solution

The fourth proportional to 281,738.13, 388,802.07 and 154,413.42 is: 213,092.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,738.13 : 388,802.07 = 154,413.42 : x
  2. Step 2: Convert to fraction form
    281,738.13/388,802.07 = 154,413.42/x
  3. Step 3: Cross multiply
    281,738.13x = 388,802.07 × 154,413.42
  4. Step 4: Simplify right side
    281,738.13x = 60,036,257,331.78
  5. Step 5: Solve for x
    x = 60,036,257,331.78/281,738.13
  6. Step 6: Final answer
    x = 213,092.41

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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.