Home / 211,529.82-317,295.83-71,289.66

Finding the Fourth Proportional to 211,529.82, 317,295.83 and 71,289.66

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Solution

The fourth proportional to 211,529.82, 317,295.83 and 71,289.66 is: 106,934.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,529.82 : 317,295.83 = 71,289.66 : x
  2. Step 2: Convert to fraction form
    211,529.82/317,295.83 = 71,289.66/x
  3. Step 3: Cross multiply
    211,529.82x = 317,295.83 × 71,289.66
  4. Step 4: Simplify right side
    211,529.82x = 22,619,911,483.67
  5. Step 5: Solve for x
    x = 22,619,911,483.67/211,529.82
  6. Step 6: Final answer
    x = 106,934.86

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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.