Finding the Fourth Proportional to 235.21, 324.51 and 136.99
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Solution
The fourth proportional to 235.21, 324.51 and 136.99 is: 189.00
Step by Step Solution
- Step 1: Write the proportion equation
235.21 : 324.51 = 136.99 : x - Step 2: Convert to fraction form
235.21/324.51 = 136.99/x - Step 3: Cross multiply
235.21x = 324.51 × 136.99 - Step 4: Simplify right side
235.21x = 44,454.62 - Step 5: Solve for x
x = 44,454.62/235.21 - Step 6: Final answer
x = 189.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.