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Finding the Fourth Proportional to 536.06, 739.52 and 388.37

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Solution

The fourth proportional to 536.06, 739.52 and 388.37 is: 535.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.06 : 739.52 = 388.37 : x
  2. Step 2: Convert to fraction form
    536.06/739.52 = 388.37/x
  3. Step 3: Cross multiply
    536.06x = 739.52 × 388.37
  4. Step 4: Simplify right side
    536.06x = 287,201.74
  5. Step 5: Solve for x
    x = 287,201.74/536.06
  6. Step 6: Final answer
    x = 535.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.