Finding the Fourth Proportional to 216,915.76, 299,133.44 and 169,151.68
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Solution
The fourth proportional to 216,915.76, 299,133.44 and 169,151.68 is: 233,265.32
Step by Step Solution
- Step 1: Write the proportion equation
216,915.76 : 299,133.44 = 169,151.68 : x - Step 2: Convert to fraction form
216,915.76/299,133.44 = 169,151.68/x - Step 3: Cross multiply
216,915.76x = 299,133.44 × 169,151.68 - Step 4: Simplify right side
216,915.76x = 50,598,923,920.18 - Step 5: Solve for x
x = 50,598,923,920.18/216,915.76 - Step 6: Final answer
x = 233,265.32
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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.