Finding the Fourth Proportional to 239.19, 330.08 and 140.95
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Solution
The fourth proportional to 239.19, 330.08 and 140.95 is: 194.50
Step by Step Solution
- Step 1: Write the proportion equation
239.19 : 330.08 = 140.95 : x - Step 2: Convert to fraction form
239.19/330.08 = 140.95/x - Step 3: Cross multiply
239.19x = 330.08 × 140.95 - Step 4: Simplify right side
239.19x = 46,522.63 - Step 5: Solve for x
x = 46,522.63/239.19 - Step 6: Final answer
x = 194.50
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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.