Home / 286,509.09-395,431.26-165,723.81

Finding the Fourth Proportional to 286,509.09, 395,431.26 and 165,723.81

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Solution

The fourth proportional to 286,509.09, 395,431.26 and 165,723.81 is: 228,727.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,509.09 : 395,431.26 = 165,723.81 : x
  2. Step 2: Convert to fraction form
    286,509.09/395,431.26 = 165,723.81/x
  3. Step 3: Cross multiply
    286,509.09x = 395,431.26 × 165,723.81
  4. Step 4: Simplify right side
    286,509.09x = 65,532,375,000.30
  5. Step 5: Solve for x
    x = 65,532,375,000.30/286,509.09
  6. Step 6: Final answer
    x = 228,727.04

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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.