Finding the Fourth Proportional to 438,069.80, 657,104.70 and 272,181.80
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Solution
The fourth proportional to 438,069.80, 657,104.70 and 272,181.80 is: 408,272.70
Step by Step Solution
- Step 1: Write the proportion equation
438,069.80 : 657,104.70 = 272,181.80 : x - Step 2: Convert to fraction form
438,069.80/657,104.70 = 272,181.80/x - Step 3: Cross multiply
438,069.80x = 657,104.70 × 272,181.80 - Step 4: Simplify right side
438,069.80x = 178,851,940,034.46 - Step 5: Solve for x
x = 178,851,940,034.46/438,069.80 - Step 6: Final answer
x = 408,272.70
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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.