Finding the Fourth Proportional to 203,562.21, 280,920.36 and 112,915.23
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Solution
The fourth proportional to 203,562.21, 280,920.36 and 112,915.23 is: 155,825.52
Step by Step Solution
- Step 1: Write the proportion equation
203,562.21 : 280,920.36 = 112,915.23 : x - Step 2: Convert to fraction form
203,562.21/280,920.36 = 112,915.23/x - Step 3: Cross multiply
203,562.21x = 280,920.36 × 112,915.23 - Step 4: Simplify right side
203,562.21x = 31,720,187,061.08 - Step 5: Solve for x
x = 31,720,187,061.08/203,562.21 - Step 6: Final answer
x = 155,825.52
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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.