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Finding the Fourth Proportional to 167.45, 251.64 and 156.51

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Solution

The fourth proportional to 167.45, 251.64 and 156.51 is: 235.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.45 : 251.64 = 156.51 : x
  2. Step 2: Convert to fraction form
    167.45/251.64 = 156.51/x
  3. Step 3: Cross multiply
    167.45x = 251.64 × 156.51
  4. Step 4: Simplify right side
    167.45x = 39,384.18
  5. Step 5: Solve for x
    x = 39,384.18/167.45
  6. Step 6: Final answer
    x = 235.21

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