Finding the Fourth Proportional to 351,408.84, 484,912.96 and 208,145.76
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Solution
The fourth proportional to 351,408.84, 484,912.96 and 208,145.76 is: 287,222.65
Step by Step Solution
- Step 1: Write the proportion equation
351,408.84 : 484,912.96 = 208,145.76 : x - Step 2: Convert to fraction form
351,408.84/484,912.96 = 208,145.76/x - Step 3: Cross multiply
351,408.84x = 484,912.96 × 208,145.76 - Step 4: Simplify right side
351,408.84x = 100,932,576,593.05 - Step 5: Solve for x
x = 100,932,576,593.05/351,408.84 - Step 6: Final answer
x = 287,222.65
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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.