Finding the Fourth Proportional to 312,205.68, 468,118.85 and 122,438.70
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Solution
The fourth proportional to 312,205.68, 468,118.85 and 122,438.70 is: 183,583.66
Step by Step Solution
- Step 1: Write the proportion equation
312,205.68 : 468,118.85 = 122,438.70 : x - Step 2: Convert to fraction form
312,205.68/468,118.85 = 122,438.70/x - Step 3: Cross multiply
312,205.68x = 468,118.85 × 122,438.70 - Step 4: Simplify right side
312,205.68x = 57,315,862,827.30 - Step 5: Solve for x
x = 57,315,862,827.30/312,205.68 - Step 6: Final answer
x = 183,583.66
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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.