Home / 388,639.72-582,974.94-108,181.48

Finding the Fourth Proportional to 388,639.72, 582,974.94 and 108,181.48

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Solution

The fourth proportional to 388,639.72, 582,974.94 and 108,181.48 is: 162,276.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,639.72 : 582,974.94 = 108,181.48 : x
  2. Step 2: Convert to fraction form
    388,639.72/582,974.94 = 108,181.48/x
  3. Step 3: Cross multiply
    388,639.72x = 582,974.94 × 108,181.48
  4. Step 4: Simplify right side
    388,639.72x = 63,067,091,812.11
  5. Step 5: Solve for x
    x = 63,067,091,812.11/388,639.72
  6. Step 6: Final answer
    x = 162,276.50

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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.