Home / 286,380.45-395,181.88-165,529.56

Finding the Fourth Proportional to 286,380.45, 395,181.88 and 165,529.56

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Solution

The fourth proportional to 286,380.45, 395,181.88 and 165,529.56 is: 228,417.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,380.45 : 395,181.88 = 165,529.56 : x
  2. Step 2: Convert to fraction form
    286,380.45/395,181.88 = 165,529.56/x
  3. Step 3: Cross multiply
    286,380.45x = 395,181.88 × 165,529.56
  4. Step 4: Simplify right side
    286,380.45x = 65,414,282,716.37
  5. Step 5: Solve for x
    x = 65,414,282,716.37/286,380.45
  6. Step 6: Final answer
    x = 228,417.42

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1.5x scale

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.