Finding the Fourth Proportional to 415.26, 572.99 and 238.20
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Solution
The fourth proportional to 415.26, 572.99 and 238.20 is: 328.68
Step by Step Solution
- Step 1: Write the proportion equation
415.26 : 572.99 = 238.20 : x - Step 2: Convert to fraction form
415.26/572.99 = 238.20/x - Step 3: Cross multiply
415.26x = 572.99 × 238.20 - Step 4: Simplify right side
415.26x = 136,486.22 - Step 5: Solve for x
x = 136,486.22/415.26 - Step 6: Final answer
x = 328.68
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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.