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Finding the Fourth Proportional to 383.64, 529.62 and 236.20

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Solution

The fourth proportional to 383.64, 529.62 and 236.20 is: 326.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.64 : 529.62 = 236.20 : x
  2. Step 2: Convert to fraction form
    383.64/529.62 = 236.20/x
  3. Step 3: Cross multiply
    383.64x = 529.62 × 236.20
  4. Step 4: Simplify right side
    383.64x = 125,096.24
  5. Step 5: Solve for x
    x = 125,096.24/383.64
  6. Step 6: Final answer
    x = 326.08

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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.