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Finding the Fourth Proportional to 384.22, 575.70 and 167.95

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Solution

The fourth proportional to 384.22, 575.70 and 167.95 is: 251.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.22 : 575.70 = 167.95 : x
  2. Step 2: Convert to fraction form
    384.22/575.70 = 167.95/x
  3. Step 3: Cross multiply
    384.22x = 575.70 × 167.95
  4. Step 4: Simplify right side
    384.22x = 96,688.82
  5. Step 5: Solve for x
    x = 96,688.82/384.22
  6. Step 6: Final answer
    x = 251.65

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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.