Home / 263,470.34-395,268.38-85,977.68

Finding the Fourth Proportional to 263,470.34, 395,268.38 and 85,977.68

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Solution

The fourth proportional to 263,470.34, 395,268.38 and 85,977.68 is: 128,987.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,470.34 : 395,268.38 = 85,977.68 : x
  2. Step 2: Convert to fraction form
    263,470.34/395,268.38 = 85,977.68/x
  3. Step 3: Cross multiply
    263,470.34x = 395,268.38 × 85,977.68
  4. Step 4: Simplify right side
    263,470.34x = 33,984,255,883.53
  5. Step 5: Solve for x
    x = 33,984,255,883.53/263,470.34
  6. Step 6: Final answer
    x = 128,987.03

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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.