Finding the Fourth Proportional to 232.54, 320.91 and 153.99
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Solution
The fourth proportional to 232.54, 320.91 and 153.99 is: 212.51
Step by Step Solution
- Step 1: Write the proportion equation
232.54 : 320.91 = 153.99 : x - Step 2: Convert to fraction form
232.54/320.91 = 153.99/x - Step 3: Cross multiply
232.54x = 320.91 × 153.99 - Step 4: Simplify right side
232.54x = 49,416.93 - Step 5: Solve for x
x = 49,416.93/232.54 - Step 6: Final answer
x = 212.51
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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.