Finding the Fourth Proportional to 548,276.80, 822,415.20 and 193,691.20
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Solution
The fourth proportional to 548,276.80, 822,415.20 and 193,691.20 is: 290,536.80
Step by Step Solution
- Step 1: Write the proportion equation
548,276.80 : 822,415.20 = 193,691.20 : x - Step 2: Convert to fraction form
548,276.80/822,415.20 = 193,691.20/x - Step 3: Cross multiply
548,276.80x = 822,415.20 × 193,691.20 - Step 4: Simplify right side
548,276.80x = 159,294,586,986.24 - Step 5: Solve for x
x = 159,294,586,986.24/548,276.80 - Step 6: Final answer
x = 290,536.80
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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.