Home / 211,610.94-317,505.47-131,715.74

Finding the Fourth Proportional to 211,610.94, 317,505.47 and 131,715.74

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Solution

The fourth proportional to 211,610.94, 317,505.47 and 131,715.74 is: 197,629.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,610.94 : 317,505.47 = 131,715.74 : x
  2. Step 2: Convert to fraction form
    211,610.94/317,505.47 = 131,715.74/x
  3. Step 3: Cross multiply
    211,610.94x = 317,505.47 × 131,715.74
  4. Step 4: Simplify right side
    211,610.94x = 41,820,465,688.99
  5. Step 5: Solve for x
    x = 41,820,465,688.99/211,610.94
  6. Step 6: Final answer
    x = 197,629.03

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1.5x scale

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.