Finding the Fourth Proportional to 219.93, 302.94 and 193.70
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Solution
The fourth proportional to 219.93, 302.94 and 193.70 is: 266.80
Step by Step Solution
- Step 1: Write the proportion equation
219.93 : 302.94 = 193.70 : x - Step 2: Convert to fraction form
219.93/302.94 = 193.70/x - Step 3: Cross multiply
219.93x = 302.94 × 193.70 - Step 4: Simplify right side
219.93x = 58,677.96 - Step 5: Solve for x
x = 58,677.96/219.93 - Step 6: Final answer
x = 266.80
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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.