Finding the Fourth Proportional to 378,489.50, 567,734.34 and 153,972.08
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Solution
The fourth proportional to 378,489.50, 567,734.34 and 153,972.08 is: 230,958.16
Step by Step Solution
- Step 1: Write the proportion equation
378,489.50 : 567,734.34 = 153,972.08 : x - Step 2: Convert to fraction form
378,489.50/567,734.34 = 153,972.08/x - Step 3: Cross multiply
378,489.50x = 567,734.34 × 153,972.08 - Step 4: Simplify right side
378,489.50x = 87,415,237,217.23 - Step 5: Solve for x
x = 87,415,237,217.23/378,489.50 - Step 6: Final answer
x = 230,958.16
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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.