Home / 388,257.27-582,390.24-135,538.08

Finding the Fourth Proportional to 388,257.27, 582,390.24 and 135,538.08

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Solution

The fourth proportional to 388,257.27, 582,390.24 and 135,538.08 is: 203,308.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,257.27 : 582,390.24 = 135,538.08 : x
  2. Step 2: Convert to fraction form
    388,257.27/582,390.24 = 135,538.08/x
  3. Step 3: Cross multiply
    388,257.27x = 582,390.24 × 135,538.08
  4. Step 4: Simplify right side
    388,257.27x = 78,936,054,940.34
  5. Step 5: Solve for x
    x = 78,936,054,940.34/388,257.27
  6. Step 6: Final answer
    x = 203,308.63

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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.