Finding the Fourth Proportional to 402,562.20, 603,916.20 and 202,378.80
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Solution
The fourth proportional to 402,562.20, 603,916.20 and 202,378.80 is: 303,604.85
Step by Step Solution
- Step 1: Write the proportion equation
402,562.20 : 603,916.20 = 202,378.80 : x - Step 2: Convert to fraction form
402,562.20/603,916.20 = 202,378.80/x - Step 3: Cross multiply
402,562.20x = 603,916.20 × 202,378.80 - Step 4: Simplify right side
402,562.20x = 122,219,835,856.56 - Step 5: Solve for x
x = 122,219,835,856.56/402,562.20 - Step 6: Final answer
x = 303,604.85
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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.