Finding the Fourth Proportional to 289,122.80, 433,684.20 and 102,153.20
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Solution
The fourth proportional to 289,122.80, 433,684.20 and 102,153.20 is: 153,229.80
Step by Step Solution
- Step 1: Write the proportion equation
289,122.80 : 433,684.20 = 102,153.20 : x - Step 2: Convert to fraction form
289,122.80/433,684.20 = 102,153.20/x - Step 3: Cross multiply
289,122.80x = 433,684.20 × 102,153.20 - Step 4: Simplify right side
289,122.80x = 44,302,228,819.44 - Step 5: Solve for x
x = 44,302,228,819.44/289,122.80 - Step 6: Final answer
x = 153,229.80
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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.