Finding the Fourth Proportional to 163,912.80, 245,859.48 and 57,289.26
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Solution
The fourth proportional to 163,912.80, 245,859.48 and 57,289.26 is: 85,930.49
Step by Step Solution
- Step 1: Write the proportion equation
163,912.80 : 245,859.48 = 57,289.26 : x - Step 2: Convert to fraction form
163,912.80/245,859.48 = 57,289.26/x - Step 3: Cross multiply
163,912.80x = 245,859.48 × 57,289.26 - Step 4: Simplify right side
163,912.80x = 14,085,107,673.18 - Step 5: Solve for x
x = 14,085,107,673.18/163,912.80 - Step 6: Final answer
x = 85,930.49
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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.