Finding the Fourth Proportional to 543,021.68, 814,205.16 and 243,448.08
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Solution
The fourth proportional to 543,021.68, 814,205.16 and 243,448.08 is: 365,025.36
Step by Step Solution
- Step 1: Write the proportion equation
543,021.68 : 814,205.16 = 243,448.08 : x - Step 2: Convert to fraction form
543,021.68/814,205.16 = 243,448.08/x - Step 3: Cross multiply
543,021.68x = 814,205.16 × 243,448.08 - Step 4: Simplify right side
543,021.68x = 198,216,682,928.09 - Step 5: Solve for x
x = 198,216,682,928.09/543,021.68 - Step 6: Final answer
x = 365,025.36
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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.