Home / 329,919.40-494,879.10-211,724.20

Finding the Fourth Proportional to 329,919.40, 494,879.10 and 211,724.20

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Solution

The fourth proportional to 329,919.40, 494,879.10 and 211,724.20 is: 317,586.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,919.40 : 494,879.10 = 211,724.20 : x
  2. Step 2: Convert to fraction form
    329,919.40/494,879.10 = 211,724.20/x
  3. Step 3: Cross multiply
    329,919.40x = 494,879.10 × 211,724.20
  4. Step 4: Simplify right side
    329,919.40x = 104,777,881,544.22
  5. Step 5: Solve for x
    x = 104,777,881,544.22/329,919.40
  6. Step 6: Final answer
    x = 317,586.30

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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.