Finding the Fourth Proportional to 289,930.80, 434,876.64 and 79,551.12
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Solution
The fourth proportional to 289,930.80, 434,876.64 and 79,551.12 is: 119,321.31
Step by Step Solution
- Step 1: Write the proportion equation
289,930.80 : 434,876.64 = 79,551.12 : x - Step 2: Convert to fraction form
289,930.80/434,876.64 = 79,551.12/x - Step 3: Cross multiply
289,930.80x = 434,876.64 × 79,551.12 - Step 4: Simplify right side
289,930.80x = 34,594,923,773.84 - Step 5: Solve for x
x = 34,594,923,773.84/289,930.80 - Step 6: Final answer
x = 119,321.31
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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.