Home / 368,138.20-552,207.30-131,488.60

Finding the Fourth Proportional to 368,138.20, 552,207.30 and 131,488.60

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Solution

The fourth proportional to 368,138.20, 552,207.30 and 131,488.60 is: 197,232.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,138.20 : 552,207.30 = 131,488.60 : x
  2. Step 2: Convert to fraction form
    368,138.20/552,207.30 = 131,488.60/x
  3. Step 3: Cross multiply
    368,138.20x = 552,207.30 × 131,488.60
  4. Step 4: Simplify right side
    368,138.20x = 72,608,964,786.78
  5. Step 5: Solve for x
    x = 72,608,964,786.78/368,138.20
  6. Step 6: Final answer
    x = 197,232.90

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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.