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Finding the Fourth Proportional to 394.80, 595.16 and 368.37

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Solution

The fourth proportional to 394.80, 595.16 and 368.37 is: 555.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    394.80 : 595.16 = 368.37 : x
  2. Step 2: Convert to fraction form
    394.80/595.16 = 368.37/x
  3. Step 3: Cross multiply
    394.80x = 595.16 × 368.37
  4. Step 4: Simplify right side
    394.80x = 219,239.09
  5. Step 5: Solve for x
    x = 219,239.09/394.80
  6. Step 6: Final answer
    x = 555.32

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.