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Finding the Fourth Proportional to 444.06, 612.60 and 339.12

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Solution

The fourth proportional to 444.06, 612.60 and 339.12 is: 467.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.06 : 612.60 = 339.12 : x
  2. Step 2: Convert to fraction form
    444.06/612.60 = 339.12/x
  3. Step 3: Cross multiply
    444.06x = 612.60 × 339.12
  4. Step 4: Simplify right side
    444.06x = 207,744.91
  5. Step 5: Solve for x
    x = 207,744.91/444.06
  6. Step 6: Final answer
    x = 467.83

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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.