Finding the Fourth Proportional to 438,654.80, 657,107.40 and 251,447.60
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Solution
The fourth proportional to 438,654.80, 657,107.40 and 251,447.60 is: 376,669.94
Step by Step Solution
- Step 1: Write the proportion equation
438,654.80 : 657,107.40 = 251,447.60 : x - Step 2: Convert to fraction form
438,654.80/657,107.40 = 251,447.60/x - Step 3: Cross multiply
438,654.80x = 657,107.40 × 251,447.60 - Step 4: Simplify right side
438,654.80x = 165,228,078,672.24 - Step 5: Solve for x
x = 165,228,078,672.24/438,654.80 - Step 6: Final answer
x = 376,669.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.