Finding the Fourth Proportional to 330,737.80, 496,106.70 and 212,639.80
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Solution
The fourth proportional to 330,737.80, 496,106.70 and 212,639.80 is: 318,959.70
Step by Step Solution
- Step 1: Write the proportion equation
330,737.80 : 496,106.70 = 212,639.80 : x - Step 2: Convert to fraction form
330,737.80/496,106.70 = 212,639.80/x - Step 3: Cross multiply
330,737.80x = 496,106.70 × 212,639.80 - Step 4: Simplify right side
330,737.80x = 105,492,029,466.66 - Step 5: Solve for x
x = 105,492,029,466.66/330,737.80 - Step 6: Final answer
x = 318,959.70
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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.