Home / 385,111.62-531,413.13-213,002.25

Finding the Fourth Proportional to 385,111.62, 531,413.13 and 213,002.25

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Solution

The fourth proportional to 385,111.62, 531,413.13 and 213,002.25 is: 293,920.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,111.62 : 531,413.13 = 213,002.25 : x
  2. Step 2: Convert to fraction form
    385,111.62/531,413.13 = 213,002.25/x
  3. Step 3: Cross multiply
    385,111.62x = 531,413.13 × 213,002.25
  4. Step 4: Simplify right side
    385,111.62x = 113,192,192,369.54
  5. Step 5: Solve for x
    x = 113,192,192,369.54/385,111.62
  6. Step 6: Final answer
    x = 293,920.48

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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.