Home / 286,274.45-395,107.33-165,485.76

Finding the Fourth Proportional to 286,274.45, 395,107.33 and 165,485.76

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Solution

The fourth proportional to 286,274.45, 395,107.33 and 165,485.76 is: 228,398.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,274.45 : 395,107.33 = 165,485.76 : x
  2. Step 2: Convert to fraction form
    286,274.45/395,107.33 = 165,485.76/x
  3. Step 3: Cross multiply
    286,274.45x = 395,107.33 × 165,485.76
  4. Step 4: Simplify right side
    286,274.45x = 65,384,633,983.66
  5. Step 5: Solve for x
    x = 65,384,633,983.66/286,274.45
  6. Step 6: Final answer
    x = 228,398.43

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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.