Finding the Fourth Proportional to 368.18, 551.70 and 252.68
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Solution
The fourth proportional to 368.18, 551.70 and 252.68 is: 378.63
Step by Step Solution
- Step 1: Write the proportion equation
368.18 : 551.70 = 252.68 : x - Step 2: Convert to fraction form
368.18/551.70 = 252.68/x - Step 3: Cross multiply
368.18x = 551.70 × 252.68 - Step 4: Simplify right side
368.18x = 139,403.56 - Step 5: Solve for x
x = 139,403.56/368.18 - Step 6: Final answer
x = 378.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.