Home / 211,378.59-317,067.21-53,606.66

Finding the Fourth Proportional to 211,378.59, 317,067.21 and 53,606.66

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Solution

The fourth proportional to 211,378.59, 317,067.21 and 53,606.66 is: 80,409.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,378.59 : 317,067.21 = 53,606.66 : x
  2. Step 2: Convert to fraction form
    211,378.59/317,067.21 = 53,606.66/x
  3. Step 3: Cross multiply
    211,378.59x = 317,067.21 × 53,606.66
  4. Step 4: Simplify right side
    211,378.59x = 16,996,912,538.28
  5. Step 5: Solve for x
    x = 16,996,912,538.28/211,378.59
  6. Step 6: Final answer
    x = 80,409.81

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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.