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Finding the Fourth Proportional to 255,449.92, 383,234.46 and 77,956.60

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Solution

The fourth proportional to 255,449.92, 383,234.46 and 77,956.60 is: 116,953.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,449.92 : 383,234.46 = 77,956.60 : x
  2. Step 2: Convert to fraction form
    255,449.92/383,234.46 = 77,956.60/x
  3. Step 3: Cross multiply
    255,449.92x = 383,234.46 × 77,956.60
  4. Step 4: Simplify right side
    255,449.92x = 29,875,655,504.44
  5. Step 5: Solve for x
    x = 29,875,655,504.44/255,449.92
  6. Step 6: Final answer
    x = 116,953.08

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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.