Finding the Fourth Proportional to 289,512.84, 434,269.44 and 79,134.96
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Solution
The fourth proportional to 289,512.84, 434,269.44 and 79,134.96 is: 118,702.49
Step by Step Solution
- Step 1: Write the proportion equation
289,512.84 : 434,269.44 = 79,134.96 : x - Step 2: Convert to fraction form
289,512.84/434,269.44 = 79,134.96/x - Step 3: Cross multiply
289,512.84x = 434,269.44 × 79,134.96 - Step 4: Simplify right side
289,512.84x = 34,365,894,763.62 - Step 5: Solve for x
x = 34,365,894,763.62/289,512.84 - Step 6: Final answer
x = 118,702.49
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1.5x scale
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.