Finding the Fourth Proportional to 338.60, 508.10 and 122.19
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Solution
The fourth proportional to 338.60, 508.10 and 122.19 is: 183.36
Step by Step Solution
- Step 1: Write the proportion equation
338.60 : 508.10 = 122.19 : x - Step 2: Convert to fraction form
338.60/508.10 = 122.19/x - Step 3: Cross multiply
338.60x = 508.10 × 122.19 - Step 4: Simplify right side
338.60x = 62,084.13 - Step 5: Solve for x
x = 62,084.13/338.60 - Step 6: Final answer
x = 183.36
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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.