Finding the Fourth Proportional to 368.15, 552.09 and 136.99
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Solution
The fourth proportional to 368.15, 552.09 and 136.99 is: 205.43
Step by Step Solution
- Step 1: Write the proportion equation
368.15 : 552.09 = 136.99 : x - Step 2: Convert to fraction form
368.15/552.09 = 136.99/x - Step 3: Cross multiply
368.15x = 552.09 × 136.99 - Step 4: Simplify right side
368.15x = 75,628.05 - Step 5: Solve for x
x = 75,628.05/368.15 - Step 6: Final answer
x = 205.43
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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.