Finding the Fourth Proportional to 213,972.21, 295,290.86 and 118,478.84
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Solution
The fourth proportional to 213,972.21, 295,290.86 and 118,478.84 is: 163,505.89
Step by Step Solution
- Step 1: Write the proportion equation
213,972.21 : 295,290.86 = 118,478.84 : x - Step 2: Convert to fraction form
213,972.21/295,290.86 = 118,478.84/x - Step 3: Cross multiply
213,972.21x = 295,290.86 × 118,478.84 - Step 4: Simplify right side
213,972.21x = 34,985,716,486.55 - Step 5: Solve for x
x = 34,985,716,486.55/213,972.21 - Step 6: Final answer
x = 163,505.89
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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.