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Finding the Fourth Proportional to 438.44, 604.56 and 314

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Solution

The fourth proportional to 438.44, 604.56 and 314 is: 432.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    438.44 : 604.56 = 314 : x
  2. Step 2: Convert to fraction form
    438.44/604.56 = 314/x
  3. Step 3: Cross multiply
    438.44x = 604.56 × 314
  4. Step 4: Simplify right side
    438.44x = 189,831.84
  5. Step 5: Solve for x
    x = 189,831.84/438.44
  6. Step 6: Final answer
    x = 432.97

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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.