Home / 263,579.16-363,739.39-142,720.50

Finding the Fourth Proportional to 263,579.16, 363,739.39 and 142,720.50

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Solution

The fourth proportional to 263,579.16, 363,739.39 and 142,720.50 is: 196,954.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,579.16 : 363,739.39 = 142,720.50 : x
  2. Step 2: Convert to fraction form
    263,579.16/363,739.39 = 142,720.50/x
  3. Step 3: Cross multiply
    263,579.16x = 363,739.39 × 142,720.50
  4. Step 4: Simplify right side
    263,579.16x = 51,913,067,610.50
  5. Step 5: Solve for x
    x = 51,913,067,610.50/263,579.16
  6. Step 6: Final answer
    x = 196,954.37

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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.