Finding the Fourth Proportional to 553.28, 829.68 and 188
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Solution
The fourth proportional to 553.28, 829.68 and 188 is: 281.92
Step by Step Solution
- Step 1: Write the proportion equation
553.28 : 829.68 = 188 : x - Step 2: Convert to fraction form
553.28/829.68 = 188/x - Step 3: Cross multiply
553.28x = 829.68 × 188 - Step 4: Simplify right side
553.28x = 155,979.84 - Step 5: Solve for x
x = 155,979.84/553.28 - Step 6: Final answer
x = 281.92
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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.