Home / 307,912.20-461,753.10-108,155.40

Finding the Fourth Proportional to 307,912.20, 461,753.10 and 108,155.40

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Solution

The fourth proportional to 307,912.20, 461,753.10 and 108,155.40 is: 162,192.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,912.20 : 461,753.10 = 108,155.40 : x
  2. Step 2: Convert to fraction form
    307,912.20/461,753.10 = 108,155.40/x
  3. Step 3: Cross multiply
    307,912.20x = 461,753.10 × 108,155.40
  4. Step 4: Simplify right side
    307,912.20x = 49,941,091,231.74
  5. Step 5: Solve for x
    x = 49,941,091,231.74/307,912.20
  6. Step 6: Final answer
    x = 162,192.64

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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.