Home / 263,790.20-395,855.40-145,546.40

Finding the Fourth Proportional to 263,790.20, 395,855.40 and 145,546.40

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Solution

The fourth proportional to 263,790.20, 395,855.40 and 145,546.40 is: 218,413.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,790.20 : 395,855.40 = 145,546.40 : x
  2. Step 2: Convert to fraction form
    263,790.20/395,855.40 = 145,546.40/x
  3. Step 3: Cross multiply
    263,790.20x = 395,855.40 × 145,546.40
  4. Step 4: Simplify right side
    263,790.20x = 57,615,328,390.56
  5. Step 5: Solve for x
    x = 57,615,328,390.56/263,790.20
  6. Step 6: Final answer
    x = 218,413.45

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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.