Home / 263,878-395,667.04-103,867.21

Finding the Fourth Proportional to 263,878, 395,667.04 and 103,867.21

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Solution

The fourth proportional to 263,878, 395,667.04 and 103,867.21 is: 155,741.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,878 : 395,667.04 = 103,867.21 : x
  2. Step 2: Convert to fraction form
    263,878/395,667.04 = 103,867.21/x
  3. Step 3: Cross multiply
    263,878x = 395,667.04 × 103,867.21
  4. Step 4: Simplify right side
    263,878x = 41,096,831,533.76
  5. Step 5: Solve for x
    x = 41,096,831,533.76/263,878
  6. Step 6: Final answer
    x = 155,741.79

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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.