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Finding the Fourth Proportional to 151,788.60, 227,820.60 and 76,960.80

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Solution

The fourth proportional to 151,788.60, 227,820.60 and 76,960.80 is: 115,511.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,788.60 : 227,820.60 = 76,960.80 : x
  2. Step 2: Convert to fraction form
    151,788.60/227,820.60 = 76,960.80/x
  3. Step 3: Cross multiply
    151,788.60x = 227,820.60 × 76,960.80
  4. Step 4: Simplify right side
    151,788.60x = 17,533,255,632.48
  5. Step 5: Solve for x
    x = 17,533,255,632.48/151,788.60
  6. Step 6: Final answer
    x = 115,511.02

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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.