Home / 215,907.60-324,142.04-166,022.72

Finding the Fourth Proportional to 215,907.60, 324,142.04 and 166,022.72

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Solution

The fourth proportional to 215,907.60, 324,142.04 and 166,022.72 is: 249,249.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,907.60 : 324,142.04 = 166,022.72 : x
  2. Step 2: Convert to fraction form
    215,907.60/324,142.04 = 166,022.72/x
  3. Step 3: Cross multiply
    215,907.60x = 324,142.04 × 166,022.72
  4. Step 4: Simplify right side
    215,907.60x = 53,814,943,147.15
  5. Step 5: Solve for x
    x = 53,814,943,147.15/215,907.60
  6. Step 6: Final answer
    x = 249,249.88

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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.