Finding the Fourth Proportional to 208,697.93, 312,981.20 and 68,423.75
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Solution
The fourth proportional to 208,697.93, 312,981.20 and 68,423.75 is: 102,614.08
Step by Step Solution
- Step 1: Write the proportion equation
208,697.93 : 312,981.20 = 68,423.75 : x - Step 2: Convert to fraction form
208,697.93/312,981.20 = 68,423.75/x - Step 3: Cross multiply
208,697.93x = 312,981.20 × 68,423.75 - Step 4: Simplify right side
208,697.93x = 21,415,347,041.38 - Step 5: Solve for x
x = 21,415,347,041.38/208,697.93 - Step 6: Final answer
x = 102,614.08
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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.