Finding the Fourth Proportional to 239.12, 329.99 and 140.93
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Solution
The fourth proportional to 239.12, 329.99 and 140.93 is: 194.48
Step by Step Solution
- Step 1: Write the proportion equation
239.12 : 329.99 = 140.93 : x - Step 2: Convert to fraction form
239.12/329.99 = 140.93/x - Step 3: Cross multiply
239.12x = 329.99 × 140.93 - Step 4: Simplify right side
239.12x = 46,503.14 - Step 5: Solve for x
x = 46,503.14/239.12 - Step 6: Final answer
x = 194.48
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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.