Finding the Fourth Proportional to 220,391.36, 330,530.80 and 68,558.75
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Solution
The fourth proportional to 220,391.36, 330,530.80 and 68,558.75 is: 102,820.62
Step by Step Solution
- Step 1: Write the proportion equation
220,391.36 : 330,530.80 = 68,558.75 : x - Step 2: Convert to fraction form
220,391.36/330,530.80 = 68,558.75/x - Step 3: Cross multiply
220,391.36x = 330,530.80 × 68,558.75 - Step 4: Simplify right side
220,391.36x = 22,660,776,831.85 - Step 5: Solve for x
x = 22,660,776,831.85/220,391.36 - Step 6: Final answer
x = 102,820.62
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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.