Finding the Fourth Proportional to 163,915.62, 226,220.49 and 100,295.70
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Solution
The fourth proportional to 163,915.62, 226,220.49 and 100,295.70 is: 138,418.43
Step by Step Solution
- Step 1: Write the proportion equation
163,915.62 : 226,220.49 = 100,295.70 : x - Step 2: Convert to fraction form
163,915.62/226,220.49 = 100,295.70/x - Step 3: Cross multiply
163,915.62x = 226,220.49 × 100,295.70 - Step 4: Simplify right side
163,915.62x = 22,688,942,398.89 - Step 5: Solve for x
x = 22,688,942,398.89/163,915.62 - Step 6: Final answer
x = 138,418.43
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.