Home / 211,261.86-316,889.79-51,338.97

Finding the Fourth Proportional to 211,261.86, 316,889.79 and 51,338.97

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Solution

The fourth proportional to 211,261.86, 316,889.79 and 51,338.97 is: 77,007.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,261.86 : 316,889.79 = 51,338.97 : x
  2. Step 2: Convert to fraction form
    211,261.86/316,889.79 = 51,338.97/x
  3. Step 3: Cross multiply
    211,261.86x = 316,889.79 × 51,338.97
  4. Step 4: Simplify right side
    211,261.86x = 16,268,795,422.12
  5. Step 5: Solve for x
    x = 16,268,795,422.12/211,261.86
  6. Step 6: Final answer
    x = 77,007.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.