Finding the Fourth Proportional to 220.84, 330.99 and 193.84
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Solution
The fourth proportional to 220.84, 330.99 and 193.84 is: 290.52
Step by Step Solution
- Step 1: Write the proportion equation
220.84 : 330.99 = 193.84 : x - Step 2: Convert to fraction form
220.84/330.99 = 193.84/x - Step 3: Cross multiply
220.84x = 330.99 × 193.84 - Step 4: Simplify right side
220.84x = 64,159.10 - Step 5: Solve for x
x = 64,159.10/220.84 - Step 6: Final answer
x = 290.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.