Finding the Fourth Proportional to 236,343.26, 326,154.73 and 128,915.60
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Solution
The fourth proportional to 236,343.26, 326,154.73 and 128,915.60 is: 177,904.09
Step by Step Solution
- Step 1: Write the proportion equation
236,343.26 : 326,154.73 = 128,915.60 : x - Step 2: Convert to fraction form
236,343.26/326,154.73 = 128,915.60/x - Step 3: Cross multiply
236,343.26x = 326,154.73 × 128,915.60 - Step 4: Simplify right side
236,343.26x = 42,046,432,066.21 - Step 5: Solve for x
x = 42,046,432,066.21/236,343.26 - Step 6: Final answer
x = 177,904.09
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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.