Finding the Fourth Proportional to 220,296.24, 330,449.85 and 78,135.17
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Solution
The fourth proportional to 220,296.24, 330,449.85 and 78,135.17 is: 117,204.69
Step by Step Solution
- Step 1: Write the proportion equation
220,296.24 : 330,449.85 = 78,135.17 : x - Step 2: Convert to fraction form
220,296.24/330,449.85 = 78,135.17/x - Step 3: Cross multiply
220,296.24x = 330,449.85 × 78,135.17 - Step 4: Simplify right side
220,296.24x = 25,819,753,553.98 - Step 5: Solve for x
x = 25,819,753,553.98/220,296.24 - Step 6: Final answer
x = 117,204.69
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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.