Finding the Fourth Proportional to 208,526.24, 312,821.76 and 68,252.60
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Solution
The fourth proportional to 208,526.24, 312,821.76 and 68,252.60 is: 102,389.50
Step by Step Solution
- Step 1: Write the proportion equation
208,526.24 : 312,821.76 = 68,252.60 : x - Step 2: Convert to fraction form
208,526.24/312,821.76 = 68,252.60/x - Step 3: Cross multiply
208,526.24x = 312,821.76 × 68,252.60 - Step 4: Simplify right side
208,526.24x = 21,350,898,456.58 - Step 5: Solve for x
x = 21,350,898,456.58/208,526.24 - Step 6: Final answer
x = 102,389.50
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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.