Finding the Fourth Proportional to 276.99, 382.31 and 158.99
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Solution
The fourth proportional to 276.99, 382.31 and 158.99 is: 219.43
Step by Step Solution
- Step 1: Write the proportion equation
276.99 : 382.31 = 158.99 : x - Step 2: Convert to fraction form
276.99/382.31 = 158.99/x - Step 3: Cross multiply
276.99x = 382.31 × 158.99 - Step 4: Simplify right side
276.99x = 60,780.76 - Step 5: Solve for x
x = 60,780.76/276.99 - Step 6: Final answer
x = 219.43
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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.