Finding the Fourth Proportional to 316,287.36, 436,489.56 and 173,059.92
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Solution
The fourth proportional to 316,287.36, 436,489.56 and 173,059.92 is: 238,829.80
Step by Step Solution
- Step 1: Write the proportion equation
316,287.36 : 436,489.56 = 173,059.92 : x - Step 2: Convert to fraction form
316,287.36/436,489.56 = 173,059.92/x - Step 3: Cross multiply
316,287.36x = 436,489.56 × 173,059.92 - Step 4: Simplify right side
316,287.36x = 75,538,848,334.44 - Step 5: Solve for x
x = 75,538,848,334.44/316,287.36 - Step 6: Final answer
x = 238,829.80
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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.