Finding the Fourth Proportional to 318,055.12, 438,893.58 and 174,824.44
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Solution
The fourth proportional to 318,055.12, 438,893.58 and 174,824.44 is: 241,245.37
Step by Step Solution
- Step 1: Write the proportion equation
318,055.12 : 438,893.58 = 174,824.44 : x - Step 2: Convert to fraction form
318,055.12/438,893.58 = 174,824.44/x - Step 3: Cross multiply
318,055.12x = 438,893.58 × 174,824.44 - Step 4: Simplify right side
318,055.12x = 76,729,324,343.10 - Step 5: Solve for x
x = 76,729,324,343.10/318,055.12 - Step 6: Final answer
x = 241,245.37
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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.