Finding the Fourth Proportional to 274.08, 377.76 and 211.68
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Solution
The fourth proportional to 274.08, 377.76 and 211.68 is: 291.76
Step by Step Solution
- Step 1: Write the proportion equation
274.08 : 377.76 = 211.68 : x - Step 2: Convert to fraction form
274.08/377.76 = 211.68/x - Step 3: Cross multiply
274.08x = 377.76 × 211.68 - Step 4: Simplify right side
274.08x = 79,964.24 - Step 5: Solve for x
x = 79,964.24/274.08 - Step 6: Final answer
x = 291.76
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.