Finding the Fourth Proportional to 207.93, 286.93 and 120.60
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Solution
The fourth proportional to 207.93, 286.93 and 120.60 is: 166.42
Step by Step Solution
- Step 1: Write the proportion equation
207.93 : 286.93 = 120.60 : x - Step 2: Convert to fraction form
207.93/286.93 = 120.60/x - Step 3: Cross multiply
207.93x = 286.93 × 120.60 - Step 4: Simplify right side
207.93x = 34,603.76 - Step 5: Solve for x
x = 34,603.76/207.93 - Step 6: Final answer
x = 166.42
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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.