Finding the Fourth Proportional to 474.63, 654.99 and 272.77
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Solution
The fourth proportional to 474.63, 654.99 and 272.77 is: 376.43
Step by Step Solution
- Step 1: Write the proportion equation
474.63 : 654.99 = 272.77 : x - Step 2: Convert to fraction form
474.63/654.99 = 272.77/x - Step 3: Cross multiply
474.63x = 654.99 × 272.77 - Step 4: Simplify right side
474.63x = 178,661.62 - Step 5: Solve for x
x = 178,661.62/474.63 - Step 6: Final answer
x = 376.43
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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.