Finding the Fourth Proportional to 208,540.08, 312,831.99 and 68,309.64
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Solution
The fourth proportional to 208,540.08, 312,831.99 and 68,309.64 is: 102,471.62
Step by Step Solution
- Step 1: Write the proportion equation
208,540.08 : 312,831.99 = 68,309.64 : x - Step 2: Convert to fraction form
208,540.08/312,831.99 = 68,309.64/x - Step 3: Cross multiply
208,540.08x = 312,831.99 × 68,309.64 - Step 4: Simplify right side
208,540.08x = 21,369,440,617.38 - Step 5: Solve for x
x = 21,369,440,617.38/208,540.08 - Step 6: Final answer
x = 102,471.62
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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.