Finding the Fourth Proportional to 252.99, 379.55 and 99
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Solution
The fourth proportional to 252.99, 379.55 and 99 is: 148.53
Step by Step Solution
- Step 1: Write the proportion equation
252.99 : 379.55 = 99 : x - Step 2: Convert to fraction form
252.99/379.55 = 99/x - Step 3: Cross multiply
252.99x = 379.55 × 99 - Step 4: Simplify right side
252.99x = 37,575.70 - Step 5: Solve for x
x = 37,575.70/252.99 - Step 6: Final answer
x = 148.53
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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.