Finding the Fourth Proportional to 261.11, 392 and 174.99
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Solution
The fourth proportional to 261.11, 392 and 174.99 is: 262.71
Step by Step Solution
- Step 1: Write the proportion equation
261.11 : 392 = 174.99 : x - Step 2: Convert to fraction form
261.11/392 = 174.99/x - Step 3: Cross multiply
261.11x = 392 × 174.99 - Step 4: Simplify right side
261.11x = 68,596.08 - Step 5: Solve for x
x = 68,596.08/261.11 - Step 6: Final answer
x = 262.71
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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.