Home / 353,121.60-529,682.40-324,091.20

Finding the Fourth Proportional to 353,121.60, 529,682.40 and 324,091.20

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Solution

The fourth proportional to 353,121.60, 529,682.40 and 324,091.20 is: 486,136.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,121.60 : 529,682.40 = 324,091.20 : x
  2. Step 2: Convert to fraction form
    353,121.60/529,682.40 = 324,091.20/x
  3. Step 3: Cross multiply
    353,121.60x = 529,682.40 × 324,091.20
  4. Step 4: Simplify right side
    353,121.60x = 171,665,404,634.88
  5. Step 5: Solve for x
    x = 171,665,404,634.88/353,121.60
  6. Step 6: Final answer
    x = 486,136.80

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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.