Home / 263,743.76-395,664.95-86,260.41

Finding the Fourth Proportional to 263,743.76, 395,664.95 and 86,260.41

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Solution

The fourth proportional to 263,743.76, 395,664.95 and 86,260.41 is: 129,406.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,743.76 : 395,664.95 = 86,260.41 : x
  2. Step 2: Convert to fraction form
    263,743.76/395,664.95 = 86,260.41/x
  3. Step 3: Cross multiply
    263,743.76x = 395,664.95 × 86,260.41
  4. Step 4: Simplify right side
    263,743.76x = 34,130,221,025.28
  5. Step 5: Solve for x
    x = 34,130,221,025.28/263,743.76
  6. Step 6: Final answer
    x = 129,406.74

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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.