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Finding the Fourth Proportional to 304.56, 420.24 and 201

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Solution

The fourth proportional to 304.56, 420.24 and 201 is: 277.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.56 : 420.24 = 201 : x
  2. Step 2: Convert to fraction form
    304.56/420.24 = 201/x
  3. Step 3: Cross multiply
    304.56x = 420.24 × 201
  4. Step 4: Simplify right side
    304.56x = 84,468.24
  5. Step 5: Solve for x
    x = 84,468.24/304.56
  6. Step 6: Final answer
    x = 277.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.