Finding the Fourth Proportional to 295.26, 442.70 and 141.20
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Solution
The fourth proportional to 295.26, 442.70 and 141.20 is: 211.71
Step by Step Solution
- Step 1: Write the proportion equation
295.26 : 442.70 = 141.20 : x - Step 2: Convert to fraction form
295.26/442.70 = 141.20/x - Step 3: Cross multiply
295.26x = 442.70 × 141.20 - Step 4: Simplify right side
295.26x = 62,509.24 - Step 5: Solve for x
x = 62,509.24/295.26 - Step 6: Final answer
x = 211.71
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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.