Home / 211,571.82-317,358.81-71,331.66

Finding the Fourth Proportional to 211,571.82, 317,358.81 and 71,331.66

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Solution

The fourth proportional to 211,571.82, 317,358.81 and 71,331.66 is: 106,997.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,571.82 : 317,358.81 = 71,331.66 : x
  2. Step 2: Convert to fraction form
    211,571.82/317,358.81 = 71,331.66/x
  3. Step 3: Cross multiply
    211,571.82x = 317,358.81 × 71,331.66
  4. Step 4: Simplify right side
    211,571.82x = 22,637,730,732.92
  5. Step 5: Solve for x
    x = 22,637,730,732.92/211,571.82
  6. Step 6: Final answer
    x = 106,997.85

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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.