Home / 286,372.72-395,171.24-165,521.84

Finding the Fourth Proportional to 286,372.72, 395,171.24 and 165,521.84

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Solution

The fourth proportional to 286,372.72, 395,171.24 and 165,521.84 is: 228,406.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,372.72 : 395,171.24 = 165,521.84 : x
  2. Step 2: Convert to fraction form
    286,372.72/395,171.24 = 165,521.84/x
  3. Step 3: Cross multiply
    286,372.72x = 395,171.24 × 165,521.84
  4. Step 4: Simplify right side
    286,372.72x = 65,409,470,759.88
  5. Step 5: Solve for x
    x = 65,409,470,759.88/286,372.72
  6. Step 6: Final answer
    x = 228,406.78

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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.