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Finding the Fourth Proportional to 383.04, 576.79 and 325.46

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Solution

The fourth proportional to 383.04, 576.79 and 325.46 is: 490.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.04 : 576.79 = 325.46 : x
  2. Step 2: Convert to fraction form
    383.04/576.79 = 325.46/x
  3. Step 3: Cross multiply
    383.04x = 576.79 × 325.46
  4. Step 4: Simplify right side
    383.04x = 187,722.07
  5. Step 5: Solve for x
    x = 187,722.07/383.04
  6. Step 6: Final answer
    x = 490.08

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.