Home / 312,974.85-469,555.84-221,965.59

Finding the Fourth Proportional to 312,974.85, 469,555.84 and 221,965.59

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Solution

The fourth proportional to 312,974.85, 469,555.84 and 221,965.59 is: 333,014.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,974.85 : 469,555.84 = 221,965.59 : x
  2. Step 2: Convert to fraction form
    312,974.85/469,555.84 = 221,965.59/x
  3. Step 3: Cross multiply
    312,974.85x = 469,555.84 × 221,965.59
  4. Step 4: Simplify right side
    312,974.85x = 104,225,239,063.55
  5. Step 5: Solve for x
    x = 104,225,239,063.55/312,974.85
  6. Step 6: Final answer
    x = 333,014.74

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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.