Finding the Fourth Proportional to 203.06, 304.74 and 79.68
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Solution
The fourth proportional to 203.06, 304.74 and 79.68 is: 119.58
Step by Step Solution
- Step 1: Write the proportion equation
203.06 : 304.74 = 79.68 : x - Step 2: Convert to fraction form
203.06/304.74 = 79.68/x - Step 3: Cross multiply
203.06x = 304.74 × 79.68 - Step 4: Simplify right side
203.06x = 24,281.68 - Step 5: Solve for x
x = 24,281.68/203.06 - Step 6: Final answer
x = 119.58
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.