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Finding the Fourth Proportional to 286,322.82, 395,183.52 and 165,469.20

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Solution

The fourth proportional to 286,322.82, 395,183.52 and 165,469.20 is: 228,381.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,322.82 : 395,183.52 = 165,469.20 : x
  2. Step 2: Convert to fraction form
    286,322.82/395,183.52 = 165,469.20/x
  3. Step 3: Cross multiply
    286,322.82x = 395,183.52 × 165,469.20
  4. Step 4: Simplify right side
    286,322.82x = 65,390,700,907.58
  5. Step 5: Solve for x
    x = 65,390,700,907.58/286,322.82
  6. Step 6: Final answer
    x = 228,381.03

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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.