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Finding the Fourth Proportional to 444.44, 612.96 and 339.68

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Solution

The fourth proportional to 444.44, 612.96 and 339.68 is: 468.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.44 : 612.96 = 339.68 : x
  2. Step 2: Convert to fraction form
    444.44/612.96 = 339.68/x
  3. Step 3: Cross multiply
    444.44x = 612.96 × 339.68
  4. Step 4: Simplify right side
    444.44x = 208,210.25
  5. Step 5: Solve for x
    x = 208,210.25/444.44
  6. Step 6: Final answer
    x = 468.48

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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.