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Finding the Fourth Proportional to 367,410.76, 551,151 and 142,788.55

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Solution

The fourth proportional to 367,410.76, 551,151 and 142,788.55 is: 214,196.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,410.76 : 551,151 = 142,788.55 : x
  2. Step 2: Convert to fraction form
    367,410.76/551,151 = 142,788.55/x
  3. Step 3: Cross multiply
    367,410.76x = 551,151 × 142,788.55
  4. Step 4: Simplify right side
    367,410.76x = 78,698,052,121.05
  5. Step 5: Solve for x
    x = 78,698,052,121.05/367,410.76
  6. Step 6: Final answer
    x = 214,196.37

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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.