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Finding the Fourth Proportional to 286,373.86, 395,239 and 206,067.22

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Solution

The fourth proportional to 286,373.86, 395,239 and 206,067.22 is: 284,403.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,373.86 : 395,239 = 206,067.22 : x
  2. Step 2: Convert to fraction form
    286,373.86/395,239 = 206,067.22/x
  3. Step 3: Cross multiply
    286,373.86x = 395,239 × 206,067.22
  4. Step 4: Simplify right side
    286,373.86x = 81,445,801,965.58
  5. Step 5: Solve for x
    x = 81,445,801,965.58/286,373.86
  6. Step 6: Final answer
    x = 284,403.76

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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.