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Finding the Fourth Proportional to 211,745.88, 292,187.82 and 126,860.76

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Solution

The fourth proportional to 211,745.88, 292,187.82 and 126,860.76 is: 175,054.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,745.88 : 292,187.82 = 126,860.76 : x
  2. Step 2: Convert to fraction form
    211,745.88/292,187.82 = 126,860.76/x
  3. Step 3: Cross multiply
    211,745.88x = 292,187.82 × 126,860.76
  4. Step 4: Simplify right side
    211,745.88x = 37,067,168,907.94
  5. Step 5: Solve for x
    x = 37,067,168,907.94/211,745.88
  6. Step 6: Final answer
    x = 175,054.97

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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.