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Finding the Fourth Proportional to 383.28, 528.84 and 350.52

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Solution

The fourth proportional to 383.28, 528.84 and 350.52 is: 483.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.28 : 528.84 = 350.52 : x
  2. Step 2: Convert to fraction form
    383.28/528.84 = 350.52/x
  3. Step 3: Cross multiply
    383.28x = 528.84 × 350.52
  4. Step 4: Simplify right side
    383.28x = 185,369.00
  5. Step 5: Solve for x
    x = 185,369.00/383.28
  6. Step 6: Final answer
    x = 483.64

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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.