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Finding the Fourth Proportional to 398.94, 600.93 and 368.86

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Solution

The fourth proportional to 398.94, 600.93 and 368.86 is: 555.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    398.94 : 600.93 = 368.86 : x
  2. Step 2: Convert to fraction form
    398.94/600.93 = 368.86/x
  3. Step 3: Cross multiply
    398.94x = 600.93 × 368.86
  4. Step 4: Simplify right side
    398.94x = 221,659.04
  5. Step 5: Solve for x
    x = 221,659.04/398.94
  6. Step 6: Final answer
    x = 555.62

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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.