Finding the Fourth Proportional to 213,865.05, 295,207.50 and 123,257.19
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Solution
The fourth proportional to 213,865.05, 295,207.50 and 123,257.19 is: 170,137.42
Step by Step Solution
- Step 1: Write the proportion equation
213,865.05 : 295,207.50 = 123,257.19 : x - Step 2: Convert to fraction form
213,865.05/295,207.50 = 123,257.19/x - Step 3: Cross multiply
213,865.05x = 295,207.50 × 123,257.19 - Step 4: Simplify right side
213,865.05x = 36,386,446,916.93 - Step 5: Solve for x
x = 36,386,446,916.93/213,865.05 - Step 6: Final answer
x = 170,137.42
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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.