Finding the Fourth Proportional to 474.36, 711.45 and 161.99
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Solution
The fourth proportional to 474.36, 711.45 and 161.99 is: 242.95
Step by Step Solution
- Step 1: Write the proportion equation
474.36 : 711.45 = 161.99 : x - Step 2: Convert to fraction form
474.36/711.45 = 161.99/x - Step 3: Cross multiply
474.36x = 711.45 × 161.99 - Step 4: Simplify right side
474.36x = 115,244.23 - Step 5: Solve for x
x = 115,244.23/474.36 - Step 6: Final answer
x = 242.95
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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.