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Finding the Fourth Proportional to 368.30, 505.55 and 325.93

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Solution

The fourth proportional to 368.30, 505.55 and 325.93 is: 447.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.30 : 505.55 = 325.93 : x
  2. Step 2: Convert to fraction form
    368.30/505.55 = 325.93/x
  3. Step 3: Cross multiply
    368.30x = 505.55 × 325.93
  4. Step 4: Simplify right side
    368.30x = 164,773.91
  5. Step 5: Solve for x
    x = 164,773.91/368.30
  6. Step 6: Final answer
    x = 447.39

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.