Home / 393,286.11-542,776.45-240,413.80

Finding the Fourth Proportional to 393,286.11, 542,776.45 and 240,413.80

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Solution

The fourth proportional to 393,286.11, 542,776.45 and 240,413.80 is: 331,796.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,286.11 : 542,776.45 = 240,413.80 : x
  2. Step 2: Convert to fraction form
    393,286.11/542,776.45 = 240,413.80/x
  3. Step 3: Cross multiply
    393,286.11x = 542,776.45 × 240,413.80
  4. Step 4: Simplify right side
    393,286.11x = 130,490,948,895.01
  5. Step 5: Solve for x
    x = 130,490,948,895.01/393,286.11
  6. Step 6: Final answer
    x = 331,796.48

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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.