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Finding the Fourth Proportional to 398.91, 595.48 and 368.84

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Solution

The fourth proportional to 398.91, 595.48 and 368.84 is: 550.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    398.91 : 595.48 = 368.84 : x
  2. Step 2: Convert to fraction form
    398.91/595.48 = 368.84/x
  3. Step 3: Cross multiply
    398.91x = 595.48 × 368.84
  4. Step 4: Simplify right side
    398.91x = 219,636.84
  5. Step 5: Solve for x
    x = 219,636.84/398.91
  6. Step 6: Final answer
    x = 550.59

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.