Finding the Fourth Proportional to 213,287.70, 294,311.94 and 117,788.70
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Solution
The fourth proportional to 213,287.70, 294,311.94 and 117,788.70 is: 162,534.55
Step by Step Solution
- Step 1: Write the proportion equation
213,287.70 : 294,311.94 = 117,788.70 : x - Step 2: Convert to fraction form
213,287.70/294,311.94 = 117,788.70/x - Step 3: Cross multiply
213,287.70x = 294,311.94 × 117,788.70 - Step 4: Simplify right side
213,287.70x = 34,666,620,807.08 - Step 5: Solve for x
x = 34,666,620,807.08/213,287.70 - Step 6: Final answer
x = 162,534.55
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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.