Finding the Fourth Proportional to 386.24, 532.99 and 211.58
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Solution
The fourth proportional to 386.24, 532.99 and 211.58 is: 291.97
Step by Step Solution
- Step 1: Write the proportion equation
386.24 : 532.99 = 211.58 : x - Step 2: Convert to fraction form
386.24/532.99 = 211.58/x - Step 3: Cross multiply
386.24x = 532.99 × 211.58 - Step 4: Simplify right side
386.24x = 112,769.62 - Step 5: Solve for x
x = 112,769.62/386.24 - Step 6: Final answer
x = 291.97
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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.