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Finding the Fourth Proportional to 444.06, 612.59 and 286.62

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Solution

The fourth proportional to 444.06, 612.59 and 286.62 is: 395.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.06 : 612.59 = 286.62 : x
  2. Step 2: Convert to fraction form
    444.06/612.59 = 286.62/x
  3. Step 3: Cross multiply
    444.06x = 612.59 × 286.62
  4. Step 4: Simplify right side
    444.06x = 175,576.05
  5. Step 5: Solve for x
    x = 175,576.05/444.06
  6. Step 6: Final answer
    x = 395.39

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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.