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Finding the Fourth Proportional to 384.05, 529.38 and 352.27

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Solution

The fourth proportional to 384.05, 529.38 and 352.27 is: 485.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.05 : 529.38 = 352.27 : x
  2. Step 2: Convert to fraction form
    384.05/529.38 = 352.27/x
  3. Step 3: Cross multiply
    384.05x = 529.38 × 352.27
  4. Step 4: Simplify right side
    384.05x = 186,483.37
  5. Step 5: Solve for x
    x = 186,483.37/384.05
  6. Step 6: Final answer
    x = 485.57

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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.