Home / 263,138.20-394,415.70-144,894.40

Finding the Fourth Proportional to 263,138.20, 394,415.70 and 144,894.40

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Solution

The fourth proportional to 263,138.20, 394,415.70 and 144,894.40 is: 217,181.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,138.20 : 394,415.70 = 144,894.40 : x
  2. Step 2: Convert to fraction form
    263,138.20/394,415.70 = 144,894.40/x
  3. Step 3: Cross multiply
    263,138.20x = 394,415.70 × 144,894.40
  4. Step 4: Simplify right side
    263,138.20x = 57,148,626,202.08
  5. Step 5: Solve for x
    x = 57,148,626,202.08/263,138.20
  6. Step 6: Final answer
    x = 217,181.03

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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.