Finding the Fourth Proportional to 317,800.88, 437,918.66 and 295,378.72
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Solution
The fourth proportional to 317,800.88, 437,918.66 and 295,378.72 is: 407,021.70
Step by Step Solution
- Step 1: Write the proportion equation
317,800.88 : 437,918.66 = 295,378.72 : x - Step 2: Convert to fraction form
317,800.88/437,918.66 = 295,378.72/x - Step 3: Cross multiply
317,800.88x = 437,918.66 × 295,378.72 - Step 4: Simplify right side
317,800.88x = 129,351,853,254.92 - Step 5: Solve for x
x = 129,351,853,254.92/317,800.88 - Step 6: Final answer
x = 407,021.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.