Home / 368,121.20-552,181.80-131,471.60

Finding the Fourth Proportional to 368,121.20, 552,181.80 and 131,471.60

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Solution

The fourth proportional to 368,121.20, 552,181.80 and 131,471.60 is: 197,207.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,121.20 : 552,181.80 = 131,471.60 : x
  2. Step 2: Convert to fraction form
    368,121.20/552,181.80 = 131,471.60/x
  3. Step 3: Cross multiply
    368,121.20x = 552,181.80 × 131,471.60
  4. Step 4: Simplify right side
    368,121.20x = 72,596,224,736.88
  5. Step 5: Solve for x
    x = 72,596,224,736.88/368,121.20
  6. Step 6: Final answer
    x = 197,207.40

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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.