Home / 307,626.20-461,439.30-188,912.60

Finding the Fourth Proportional to 307,626.20, 461,439.30 and 188,912.60

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Solution

The fourth proportional to 307,626.20, 461,439.30 and 188,912.60 is: 283,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,626.20 : 461,439.30 = 188,912.60 : x
  2. Step 2: Convert to fraction form
    307,626.20/461,439.30 = 188,912.60/x
  3. Step 3: Cross multiply
    307,626.20x = 461,439.30 × 188,912.60
  4. Step 4: Simplify right side
    307,626.20x = 87,171,697,905.18
  5. Step 5: Solve for x
    x = 87,171,697,905.18/307,626.20
  6. Step 6: Final answer
    x = 283,368.90

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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.