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Finding the Fourth Proportional to 384.05, 529.73 and 236.50

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Solution

The fourth proportional to 384.05, 529.73 and 236.50 is: 326.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.05 : 529.73 = 236.50 : x
  2. Step 2: Convert to fraction form
    384.05/529.73 = 236.50/x
  3. Step 3: Cross multiply
    384.05x = 529.73 × 236.50
  4. Step 4: Simplify right side
    384.05x = 125,281.15
  5. Step 5: Solve for x
    x = 125,281.15/384.05
  6. Step 6: Final answer
    x = 326.21

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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.