Finding the Fourth Proportional to 276.99, 381.99 and 178.86
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Solution
The fourth proportional to 276.99, 381.99 and 178.86 is: 246.66
Step by Step Solution
- Step 1: Write the proportion equation
276.99 : 381.99 = 178.86 : x - Step 2: Convert to fraction form
276.99/381.99 = 178.86/x - Step 3: Cross multiply
276.99x = 381.99 × 178.86 - Step 4: Simplify right side
276.99x = 68,322.73 - Step 5: Solve for x
x = 68,322.73/276.99 - Step 6: Final answer
x = 246.66
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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.