Finding the Fourth Proportional to 203,363.70, 280,658.70 and 112,748.08
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Solution
The fourth proportional to 203,363.70, 280,658.70 and 112,748.08 is: 155,601.66
Step by Step Solution
- Step 1: Write the proportion equation
203,363.70 : 280,658.70 = 112,748.08 : x - Step 2: Convert to fraction form
203,363.70/280,658.70 = 112,748.08/x - Step 3: Cross multiply
203,363.70x = 280,658.70 × 112,748.08 - Step 4: Simplify right side
203,363.70x = 31,643,729,560.30 - Step 5: Solve for x
x = 31,643,729,560.30/203,363.70 - Step 6: Final answer
x = 155,601.66
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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.