Finding the Fourth Proportional to 148.76, 222.84 and 76.76
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Solution
The fourth proportional to 148.76, 222.84 and 76.76 is: 114.99
Step by Step Solution
- Step 1: Write the proportion equation
148.76 : 222.84 = 76.76 : x - Step 2: Convert to fraction form
148.76/222.84 = 76.76/x - Step 3: Cross multiply
148.76x = 222.84 × 76.76 - Step 4: Simplify right side
148.76x = 17,105.20 - Step 5: Solve for x
x = 17,105.20/148.76 - Step 6: Final answer
x = 114.99
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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.