Finding the Fourth Proportional to 245,686.16, 367,791.08 and 220,021.70
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Solution
The fourth proportional to 245,686.16, 367,791.08 and 220,021.70 is: 329,371.50
Step by Step Solution
- Step 1: Write the proportion equation
245,686.16 : 367,791.08 = 220,021.70 : x - Step 2: Convert to fraction form
245,686.16/367,791.08 = 220,021.70/x - Step 3: Cross multiply
245,686.16x = 367,791.08 × 220,021.70 - Step 4: Simplify right side
245,686.16x = 80,922,018,666.44 - Step 5: Solve for x
x = 80,922,018,666.44/245,686.16 - Step 6: Final answer
x = 329,371.50
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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.