Finding the Fourth Proportional to 270.25, 372.99 and 153.88
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Solution
The fourth proportional to 270.25, 372.99 and 153.88 is: 212.38
Step by Step Solution
- Step 1: Write the proportion equation
270.25 : 372.99 = 153.88 : x - Step 2: Convert to fraction form
270.25/372.99 = 153.88/x - Step 3: Cross multiply
270.25x = 372.99 × 153.88 - Step 4: Simplify right side
270.25x = 57,395.70 - Step 5: Solve for x
x = 57,395.70/270.25 - Step 6: Final answer
x = 212.38
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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.