Finding the Fourth Proportional to 289,107.64, 433,553.70 and 99,515.08
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Solution
The fourth proportional to 289,107.64, 433,553.70 and 99,515.08 is: 149,235.53
Step by Step Solution
- Step 1: Write the proportion equation
289,107.64 : 433,553.70 = 99,515.08 : x - Step 2: Convert to fraction form
289,107.64/433,553.70 = 99,515.08/x - Step 3: Cross multiply
289,107.64x = 433,553.70 × 99,515.08 - Step 4: Simplify right side
289,107.64x = 43,145,131,139.80 - Step 5: Solve for x
x = 43,145,131,139.80/289,107.64 - Step 6: Final answer
x = 149,235.53
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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.