Finding the Fourth Proportional to 355, 489.99 and 237.19
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Solution
The fourth proportional to 355, 489.99 and 237.19 is: 327.38
Step by Step Solution
- Step 1: Write the proportion equation
355 : 489.99 = 237.19 : x - Step 2: Convert to fraction form
355/489.99 = 237.19/x - Step 3: Cross multiply
355x = 489.99 × 237.19 - Step 4: Simplify right side
355x = 116,220.73 - Step 5: Solve for x
x = 116,220.73/355 - Step 6: Final answer
x = 327.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.