Finding the Fourth Proportional to 239.99, 331.18 and 141.76
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Solution
The fourth proportional to 239.99, 331.18 and 141.76 is: 195.63
Step by Step Solution
- Step 1: Write the proportion equation
239.99 : 331.18 = 141.76 : x - Step 2: Convert to fraction form
239.99/331.18 = 141.76/x - Step 3: Cross multiply
239.99x = 331.18 × 141.76 - Step 4: Simplify right side
239.99x = 46,948.08 - Step 5: Solve for x
x = 46,948.08/239.99 - Step 6: Final answer
x = 195.63
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.