Finding the Fourth Proportional to 213,165.99, 294,169.12 and 117,672.75
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Solution
The fourth proportional to 213,165.99, 294,169.12 and 117,672.75 is: 162,388.42
Step by Step Solution
- Step 1: Write the proportion equation
213,165.99 : 294,169.12 = 117,672.75 : x - Step 2: Convert to fraction form
213,165.99/294,169.12 = 117,672.75/x - Step 3: Cross multiply
213,165.99x = 294,169.12 × 117,672.75 - Step 4: Simplify right side
213,165.99x = 34,615,689,021.30 - Step 5: Solve for x
x = 34,615,689,021.30/213,165.99 - Step 6: Final answer
x = 162,388.42
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1.5x scale
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.