Home / 263,688.09-395,500.77-68,928.45

Finding the Fourth Proportional to 263,688.09, 395,500.77 and 68,928.45

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Solution

The fourth proportional to 263,688.09, 395,500.77 and 68,928.45 is: 103,384.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,688.09 : 395,500.77 = 68,928.45 : x
  2. Step 2: Convert to fraction form
    263,688.09/395,500.77 = 68,928.45/x
  3. Step 3: Cross multiply
    263,688.09x = 395,500.77 × 68,928.45
  4. Step 4: Simplify right side
    263,688.09x = 27,261,255,049.91
  5. Step 5: Solve for x
    x = 27,261,255,049.91/263,688.09
  6. Step 6: Final answer
    x = 103,384.48

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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.