Finding the Fourth Proportional to 389,650.36, 537,712.23 and 217,570.99
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Solution
The fourth proportional to 389,650.36, 537,712.23 and 217,570.99 is: 300,245.03
Step by Step Solution
- Step 1: Write the proportion equation
389,650.36 : 537,712.23 = 217,570.99 : x - Step 2: Convert to fraction form
389,650.36/537,712.23 = 217,570.99/x - Step 3: Cross multiply
389,650.36x = 537,712.23 × 217,570.99 - Step 4: Simplify right side
389,650.36x = 116,990,582,216.21 - Step 5: Solve for x
x = 116,990,582,216.21/389,650.36 - Step 6: Final answer
x = 300,245.03
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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.