Finding the Fourth Proportional to 350.55, 484.11 and 288.99
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Solution
The fourth proportional to 350.55, 484.11 and 288.99 is: 399.10
Step by Step Solution
- Step 1: Write the proportion equation
350.55 : 484.11 = 288.99 : x - Step 2: Convert to fraction form
350.55/484.11 = 288.99/x - Step 3: Cross multiply
350.55x = 484.11 × 288.99 - Step 4: Simplify right side
350.55x = 139,902.95 - Step 5: Solve for x
x = 139,902.95/350.55 - Step 6: Final answer
x = 399.10
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.