Home / 386,742.60-579,974.82-133,954.98

Finding the Fourth Proportional to 386,742.60, 579,974.82 and 133,954.98

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Solution

The fourth proportional to 386,742.60, 579,974.82 and 133,954.98 is: 200,884.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,742.60 : 579,974.82 = 133,954.98 : x
  2. Step 2: Convert to fraction form
    386,742.60/579,974.82 = 133,954.98/x
  3. Step 3: Cross multiply
    386,742.60x = 579,974.82 × 133,954.98
  4. Step 4: Simplify right side
    386,742.60x = 77,690,515,413.60
  5. Step 5: Solve for x
    x = 77,690,515,413.60/386,742.60
  6. Step 6: Final answer
    x = 200,884.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.