Finding the Fourth Proportional to 149.24, 205.92 and 93.26
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Solution
The fourth proportional to 149.24, 205.92 and 93.26 is: 128.68
Step by Step Solution
- Step 1: Write the proportion equation
149.24 : 205.92 = 93.26 : x - Step 2: Convert to fraction form
149.24/205.92 = 93.26/x - Step 3: Cross multiply
149.24x = 205.92 × 93.26 - Step 4: Simplify right side
149.24x = 19,203.07 - Step 5: Solve for x
x = 19,203.07/149.24 - Step 6: Final answer
x = 128.68
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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.