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Finding the Fourth Proportional to 368.57, 508.85 and 327.57

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Solution

The fourth proportional to 368.57, 508.85 and 327.57 is: 452.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.57 : 508.85 = 327.57 : x
  2. Step 2: Convert to fraction form
    368.57/508.85 = 327.57/x
  3. Step 3: Cross multiply
    368.57x = 508.85 × 327.57
  4. Step 4: Simplify right side
    368.57x = 166,681.68
  5. Step 5: Solve for x
    x = 166,681.68/368.57
  6. Step 6: Final answer
    x = 452.24

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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.