Finding the Fourth Proportional to 282,142.41, 423,220.10 and 68,912.09
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Solution
The fourth proportional to 282,142.41, 423,220.10 and 68,912.09 is: 103,369.72
Step by Step Solution
- Step 1: Write the proportion equation
282,142.41 : 423,220.10 = 68,912.09 : x - Step 2: Convert to fraction form
282,142.41/423,220.10 = 68,912.09/x - Step 3: Cross multiply
282,142.41x = 423,220.10 × 68,912.09 - Step 4: Simplify right side
282,142.41x = 29,164,981,621.01 - Step 5: Solve for x
x = 29,164,981,621.01/282,142.41 - Step 6: Final answer
x = 103,369.72
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1.5x scale
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.