Home / 263,050.72-394,705.69-122,819.20

Finding the Fourth Proportional to 263,050.72, 394,705.69 and 122,819.20

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Solution

The fourth proportional to 263,050.72, 394,705.69 and 122,819.20 is: 184,289.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,050.72 : 394,705.69 = 122,819.20 : x
  2. Step 2: Convert to fraction form
    263,050.72/394,705.69 = 122,819.20/x
  3. Step 3: Cross multiply
    263,050.72x = 394,705.69 × 122,819.20
  4. Step 4: Simplify right side
    263,050.72x = 48,477,437,081.25
  5. Step 5: Solve for x
    x = 48,477,437,081.25/263,050.72
  6. Step 6: Final answer
    x = 184,289.32

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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.