Finding the Fourth Proportional to 234.05, 351.09 and 79.99
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Solution
The fourth proportional to 234.05, 351.09 and 79.99 is: 119.99
Step by Step Solution
- Step 1: Write the proportion equation
234.05 : 351.09 = 79.99 : x - Step 2: Convert to fraction form
234.05/351.09 = 79.99/x - Step 3: Cross multiply
234.05x = 351.09 × 79.99 - Step 4: Simplify right side
234.05x = 28,083.69 - Step 5: Solve for x
x = 28,083.69/234.05 - Step 6: Final answer
x = 119.99
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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.