Finding the Fourth Proportional to 177.15, 244.36 and 157.71
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Solution
The fourth proportional to 177.15, 244.36 and 157.71 is: 217.55
Step by Step Solution
- Step 1: Write the proportion equation
177.15 : 244.36 = 157.71 : x - Step 2: Convert to fraction form
177.15/244.36 = 157.71/x - Step 3: Cross multiply
177.15x = 244.36 × 157.71 - Step 4: Simplify right side
177.15x = 38,539.13 - Step 5: Solve for x
x = 38,539.13/177.15 - Step 6: Final answer
x = 217.55
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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.