Finding the Fourth Proportional to 338.36, 506.93 and 132.80
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Solution
The fourth proportional to 338.36, 506.93 and 132.80 is: 198.95
Step by Step Solution
- Step 1: Write the proportion equation
338.36 : 506.93 = 132.80 : x - Step 2: Convert to fraction form
338.36/506.93 = 132.80/x - Step 3: Cross multiply
338.36x = 506.93 × 132.80 - Step 4: Simplify right side
338.36x = 67,317.11 - Step 5: Solve for x
x = 67,317.11/338.36 - Step 6: Final answer
x = 198.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.