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Finding the Fourth Proportional to 162.51, 241.67 and 157.38

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Solution

The fourth proportional to 162.51, 241.67 and 157.38 is: 234.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.51 : 241.67 = 157.38 : x
  2. Step 2: Convert to fraction form
    162.51/241.67 = 157.38/x
  3. Step 3: Cross multiply
    162.51x = 241.67 × 157.38
  4. Step 4: Simplify right side
    162.51x = 38,033.72
  5. Step 5: Solve for x
    x = 38,033.72/162.51
  6. Step 6: Final answer
    x = 234.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.