Finding the Fourth Proportional to 239.49, 330.41 and 135.99
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Solution
The fourth proportional to 239.49, 330.41 and 135.99 is: 187.61
Step by Step Solution
- Step 1: Write the proportion equation
239.49 : 330.41 = 135.99 : x - Step 2: Convert to fraction form
239.49/330.41 = 135.99/x - Step 3: Cross multiply
239.49x = 330.41 × 135.99 - Step 4: Simplify right side
239.49x = 44,931.78 - Step 5: Solve for x
x = 44,931.78/239.49 - Step 6: Final answer
x = 187.61
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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.