Finding the Fourth Proportional to 201,568.17, 278,157.09 and 110,915.66
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Solution
The fourth proportional to 201,568.17, 278,157.09 and 110,915.66 is: 153,059.77
Step by Step Solution
- Step 1: Write the proportion equation
201,568.17 : 278,157.09 = 110,915.66 : x - Step 2: Convert to fraction form
201,568.17/278,157.09 = 110,915.66/x - Step 3: Cross multiply
201,568.17x = 278,157.09 × 110,915.66 - Step 4: Simplify right side
201,568.17x = 30,851,977,221.03 - Step 5: Solve for x
x = 30,851,977,221.03/201,568.17 - Step 6: Final answer
x = 153,059.77
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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.