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Finding the Fourth Proportional to 855.33, 1,282.08 and 362

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Solution

The fourth proportional to 855.33, 1,282.08 and 362 is: 542.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    855.33 : 1,282.08 = 362 : x
  2. Step 2: Convert to fraction form
    855.33/1,282.08 = 362/x
  3. Step 3: Cross multiply
    855.33x = 1,282.08 × 362
  4. Step 4: Simplify right side
    855.33x = 464,112.96
  5. Step 5: Solve for x
    x = 464,112.96/855.33
  6. Step 6: Final answer
    x = 542.61

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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.