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Finding the Fourth Proportional to 385.93, 532.39 and 246.09

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Solution

The fourth proportional to 385.93, 532.39 and 246.09 is: 339.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    385.93 : 532.39 = 246.09 : x
  2. Step 2: Convert to fraction form
    385.93/532.39 = 246.09/x
  3. Step 3: Cross multiply
    385.93x = 532.39 × 246.09
  4. Step 4: Simplify right side
    385.93x = 131,015.86
  5. Step 5: Solve for x
    x = 131,015.86/385.93
  6. Step 6: Final answer
    x = 339.48

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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.