Home / 263,475.71-395,276.43-85,983.05

Finding the Fourth Proportional to 263,475.71, 395,276.43 and 85,983.05

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Solution

The fourth proportional to 263,475.71, 395,276.43 and 85,983.05 is: 128,995.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,475.71 : 395,276.43 = 85,983.05 : x
  2. Step 2: Convert to fraction form
    263,475.71/395,276.43 = 85,983.05/x
  3. Step 3: Cross multiply
    263,475.71x = 395,276.43 × 85,983.05
  4. Step 4: Simplify right side
    263,475.71x = 33,987,073,044.51
  5. Step 5: Solve for x
    x = 33,987,073,044.51/263,475.71
  6. Step 6: Final answer
    x = 128,995.09

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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.