Home / 263,664.68-363,855.40-142,803.20

Finding the Fourth Proportional to 263,664.68, 363,855.40 and 142,803.20

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Solution

The fourth proportional to 263,664.68, 363,855.40 and 142,803.20 is: 197,067.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,664.68 : 363,855.40 = 142,803.20 : x
  2. Step 2: Convert to fraction form
    263,664.68/363,855.40 = 142,803.20/x
  3. Step 3: Cross multiply
    263,664.68x = 363,855.40 × 142,803.20
  4. Step 4: Simplify right side
    263,664.68x = 51,959,715,457.28
  5. Step 5: Solve for x
    x = 51,959,715,457.28/263,664.68
  6. Step 6: Final answer
    x = 197,067.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.