Finding the Fourth Proportional to 402,377.36, 603,639.36 and 132,520.20
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Solution
The fourth proportional to 402,377.36, 603,639.36 and 132,520.20 is: 198,804.45
Step by Step Solution
- Step 1: Write the proportion equation
402,377.36 : 603,639.36 = 132,520.20 : x - Step 2: Convert to fraction form
402,377.36/603,639.36 = 132,520.20/x - Step 3: Cross multiply
402,377.36x = 603,639.36 × 132,520.20 - Step 4: Simplify right side
402,377.36x = 79,994,408,715.07 - Step 5: Solve for x
x = 79,994,408,715.07/402,377.36 - Step 6: Final answer
x = 198,804.45
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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.