Finding the Fourth Proportional to 235.14, 324.54 and 147.75
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Solution
The fourth proportional to 235.14, 324.54 and 147.75 is: 203.92
Step by Step Solution
- Step 1: Write the proportion equation
235.14 : 324.54 = 147.75 : x - Step 2: Convert to fraction form
235.14/324.54 = 147.75/x - Step 3: Cross multiply
235.14x = 324.54 × 147.75 - Step 4: Simplify right side
235.14x = 47,950.79 - Step 5: Solve for x
x = 47,950.79/235.14 - Step 6: Final answer
x = 203.92
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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.