Finding the Fourth Proportional to 292.79, 403.71 and 218.99
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Solution
The fourth proportional to 292.79, 403.71 and 218.99 is: 301.95
Step by Step Solution
- Step 1: Write the proportion equation
292.79 : 403.71 = 218.99 : x - Step 2: Convert to fraction form
292.79/403.71 = 218.99/x - Step 3: Cross multiply
292.79x = 403.71 × 218.99 - Step 4: Simplify right side
292.79x = 88,406.43 - Step 5: Solve for x
x = 88,406.43/292.79 - Step 6: Final answer
x = 301.95
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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.