Finding the Fourth Proportional to 203,363.76, 280,658.79 and 112,748.15
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Solution
The fourth proportional to 203,363.76, 280,658.79 and 112,748.15 is: 155,601.75
Step by Step Solution
- Step 1: Write the proportion equation
203,363.76 : 280,658.79 = 112,748.15 : x - Step 2: Convert to fraction form
203,363.76/280,658.79 = 112,748.15/x - Step 3: Cross multiply
203,363.76x = 280,658.79 × 112,748.15 - Step 4: Simplify right side
203,363.76x = 31,643,757,950.44 - Step 5: Solve for x
x = 31,643,757,950.44/203,363.76 - Step 6: Final answer
x = 155,601.75
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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.