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Finding the Fourth Proportional to 255,879.75, 383,819.63 and 89,667.75

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Solution

The fourth proportional to 255,879.75, 383,819.63 and 89,667.75 is: 134,501.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,879.75 : 383,819.63 = 89,667.75 : x
  2. Step 2: Convert to fraction form
    255,879.75/383,819.63 = 89,667.75/x
  3. Step 3: Cross multiply
    255,879.75x = 383,819.63 × 89,667.75
  4. Step 4: Simplify right side
    255,879.75x = 34,416,242,179.59
  5. Step 5: Solve for x
    x = 34,416,242,179.59/255,879.75
  6. Step 6: Final answer
    x = 134,501.63

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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.