Finding the Fourth Proportional to 345.53, 516.99 and 326.99
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Solution
The fourth proportional to 345.53, 516.99 and 326.99 is: 489.25
Step by Step Solution
- Step 1: Write the proportion equation
345.53 : 516.99 = 326.99 : x - Step 2: Convert to fraction form
345.53/516.99 = 326.99/x - Step 3: Cross multiply
345.53x = 516.99 × 326.99 - Step 4: Simplify right side
345.53x = 169,050.56 - Step 5: Solve for x
x = 169,050.56/345.53 - Step 6: Final answer
x = 489.25
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.