Finding the Fourth Proportional to 495.68, 683.92 and 320.99
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Solution
The fourth proportional to 495.68, 683.92 and 320.99 is: 442.89
Step by Step Solution
- Step 1: Write the proportion equation
495.68 : 683.92 = 320.99 : x - Step 2: Convert to fraction form
495.68/683.92 = 320.99/x - Step 3: Cross multiply
495.68x = 683.92 × 320.99 - Step 4: Simplify right side
495.68x = 219,531.48 - Step 5: Solve for x
x = 219,531.48/495.68 - Step 6: Final answer
x = 442.89
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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.