Finding the Fourth Proportional to 289,764.96, 399,894.84 and 162,448.80
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Solution
The fourth proportional to 289,764.96, 399,894.84 and 162,448.80 is: 224,190.11
Step by Step Solution
- Step 1: Write the proportion equation
289,764.96 : 399,894.84 = 162,448.80 : x - Step 2: Convert to fraction form
289,764.96/399,894.84 = 162,448.80/x - Step 3: Cross multiply
289,764.96x = 399,894.84 × 162,448.80 - Step 4: Simplify right side
289,764.96x = 64,962,436,884.19 - Step 5: Solve for x
x = 64,962,436,884.19/289,764.96 - Step 6: Final answer
x = 224,190.11
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.