Finding the Fourth Proportional to 235.42, 324.87 and 135.77
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Solution
The fourth proportional to 235.42, 324.87 and 135.77 is: 187.35
Step by Step Solution
- Step 1: Write the proportion equation
235.42 : 324.87 = 135.77 : x - Step 2: Convert to fraction form
235.42/324.87 = 135.77/x - Step 3: Cross multiply
235.42x = 324.87 × 135.77 - Step 4: Simplify right side
235.42x = 44,106.48 - Step 5: Solve for x
x = 44,106.48/235.42 - Step 6: Final answer
x = 187.35
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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.