Home / 395,288.22-545,493.84-213,995.36

Finding the Fourth Proportional to 395,288.22, 545,493.84 and 213,995.36

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Solution

The fourth proportional to 395,288.22, 545,493.84 and 213,995.36 is: 295,311.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,288.22 : 545,493.84 = 213,995.36 : x
  2. Step 2: Convert to fraction form
    395,288.22/545,493.84 = 213,995.36/x
  3. Step 3: Cross multiply
    395,288.22x = 545,493.84 × 213,995.36
  4. Step 4: Simplify right side
    395,288.22x = 116,733,150,668.58
  5. Step 5: Solve for x
    x = 116,733,150,668.58/395,288.22
  6. Step 6: Final answer
    x = 295,311.48

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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.