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Finding the Fourth Proportional to 567.68, 851.64 and 238.43

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Solution

The fourth proportional to 567.68, 851.64 and 238.43 is: 357.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.68 : 851.64 = 238.43 : x
  2. Step 2: Convert to fraction form
    567.68/851.64 = 238.43/x
  3. Step 3: Cross multiply
    567.68x = 851.64 × 238.43
  4. Step 4: Simplify right side
    567.68x = 203,054.31
  5. Step 5: Solve for x
    x = 203,054.31/567.68
  6. Step 6: Final answer
    x = 357.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.