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Finding the Fourth Proportional to 388,352.22, 582,709.77 and 201,261.66

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Solution

The fourth proportional to 388,352.22, 582,709.77 and 201,261.66 is: 301,986.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,352.22 : 582,709.77 = 201,261.66 : x
  2. Step 2: Convert to fraction form
    388,352.22/582,709.77 = 201,261.66/x
  3. Step 3: Cross multiply
    388,352.22x = 582,709.77 × 201,261.66
  4. Step 4: Simplify right side
    388,352.22x = 117,277,135,608.42
  5. Step 5: Solve for x
    x = 117,277,135,608.42/388,352.22
  6. Step 6: Final answer
    x = 301,986.52

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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.