Finding the Fourth Proportional to 306,226.96, 458,872.66 and 128,636.88
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Solution
The fourth proportional to 306,226.96, 458,872.66 and 128,636.88 is: 192,758.82
Step by Step Solution
- Step 1: Write the proportion equation
306,226.96 : 458,872.66 = 128,636.88 : x - Step 2: Convert to fraction form
306,226.96/458,872.66 = 128,636.88/x - Step 3: Cross multiply
306,226.96x = 458,872.66 × 128,636.88 - Step 4: Simplify right side
306,226.96x = 59,027,947,299.70 - Step 5: Solve for x
x = 59,027,947,299.70/306,226.96 - Step 6: Final answer
x = 192,758.82
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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.