Home / 308,990.20-463,485.30-131,452.60

Finding the Fourth Proportional to 308,990.20, 463,485.30 and 131,452.60

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Solution

The fourth proportional to 308,990.20, 463,485.30 and 131,452.60 is: 197,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,990.20 : 463,485.30 = 131,452.60 : x
  2. Step 2: Convert to fraction form
    308,990.20/463,485.30 = 131,452.60/x
  3. Step 3: Cross multiply
    308,990.20x = 463,485.30 × 131,452.60
  4. Step 4: Simplify right side
    308,990.20x = 60,926,347,746.78
  5. Step 5: Solve for x
    x = 60,926,347,746.78/308,990.20
  6. Step 6: Final answer
    x = 197,178.90

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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.