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Finding the Fourth Proportional to 654.39, 902.97 and 374.67

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Solution

The fourth proportional to 654.39, 902.97 and 374.67 is: 516.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.39 : 902.97 = 374.67 : x
  2. Step 2: Convert to fraction form
    654.39/902.97 = 374.67/x
  3. Step 3: Cross multiply
    654.39x = 902.97 × 374.67
  4. Step 4: Simplify right side
    654.39x = 338,315.77
  5. Step 5: Solve for x
    x = 338,315.77/654.39
  6. Step 6: Final answer
    x = 516.99

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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.