Home / 211,261.87-316,889.82-51,338.98

Finding the Fourth Proportional to 211,261.87, 316,889.82 and 51,338.98

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Solution

The fourth proportional to 211,261.87, 316,889.82 and 51,338.98 is: 77,007.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,261.87 : 316,889.82 = 51,338.98 : x
  2. Step 2: Convert to fraction form
    211,261.87/316,889.82 = 51,338.98/x
  3. Step 3: Cross multiply
    211,261.87x = 316,889.82 × 51,338.98
  4. Step 4: Simplify right side
    211,261.87x = 16,268,800,131.18
  5. Step 5: Solve for x
    x = 16,268,800,131.18/211,261.87
  6. Step 6: Final answer
    x = 77,007.74

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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.