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Finding the Fourth Proportional to 170,767.60, 255,978.60 and 100,610.80

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Solution

The fourth proportional to 170,767.60, 255,978.60 and 100,610.80 is: 150,814.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,767.60 : 255,978.60 = 100,610.80 : x
  2. Step 2: Convert to fraction form
    170,767.60/255,978.60 = 100,610.80/x
  3. Step 3: Cross multiply
    170,767.60x = 255,978.60 × 100,610.80
  4. Step 4: Simplify right side
    170,767.60x = 25,754,211,728.88
  5. Step 5: Solve for x
    x = 25,754,211,728.88/170,767.60
  6. Step 6: Final answer
    x = 150,814.39

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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.