Finding the Fourth Proportional to 213,392.21, 319,994.01 and 113,528.70
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Solution
The fourth proportional to 213,392.21, 319,994.01 and 113,528.70 is: 170,242.88
Step by Step Solution
- Step 1: Write the proportion equation
213,392.21 : 319,994.01 = 113,528.70 : x - Step 2: Convert to fraction form
213,392.21/319,994.01 = 113,528.70/x - Step 3: Cross multiply
213,392.21x = 319,994.01 × 113,528.70 - Step 4: Simplify right side
213,392.21x = 36,328,503,963.09 - Step 5: Solve for x
x = 36,328,503,963.09/213,392.21 - Step 6: Final answer
x = 170,242.88
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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.