Finding the Fourth Proportional to 338.68, 508.11 and 122.23
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Solution
The fourth proportional to 338.68, 508.11 and 122.23 is: 183.38
Step by Step Solution
- Step 1: Write the proportion equation
338.68 : 508.11 = 122.23 : x - Step 2: Convert to fraction form
338.68/508.11 = 122.23/x - Step 3: Cross multiply
338.68x = 508.11 × 122.23 - Step 4: Simplify right side
338.68x = 62,106.29 - Step 5: Solve for x
x = 62,106.29/338.68 - Step 6: Final answer
x = 183.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.