Finding the Fourth Proportional to 305,431.84, 458,037.96 and 105,697.99
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Solution
The fourth proportional to 305,431.84, 458,037.96 and 105,697.99 is: 158,508.99
Step by Step Solution
- Step 1: Write the proportion equation
305,431.84 : 458,037.96 = 105,697.99 : x - Step 2: Convert to fraction form
305,431.84/458,037.96 = 105,697.99/x - Step 3: Cross multiply
305,431.84x = 458,037.96 × 105,697.99 - Step 4: Simplify right side
305,431.84x = 48,413,691,715.70 - Step 5: Solve for x
x = 48,413,691,715.70/305,431.84 - Step 6: Final answer
x = 158,508.99
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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.