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Finding the Fourth Proportional to 548.65, 757.20 and 352.63

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Solution

The fourth proportional to 548.65, 757.20 and 352.63 is: 486.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.65 : 757.20 = 352.63 : x
  2. Step 2: Convert to fraction form
    548.65/757.20 = 352.63/x
  3. Step 3: Cross multiply
    548.65x = 757.20 × 352.63
  4. Step 4: Simplify right side
    548.65x = 267,011.44
  5. Step 5: Solve for x
    x = 267,011.44/548.65
  6. Step 6: Final answer
    x = 486.67

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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.