Finding the Fourth Proportional to 280,297.18, 420,382.68 and 80,573.02
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Solution
The fourth proportional to 280,297.18, 420,382.68 and 80,573.02 is: 120,841.39
Step by Step Solution
- Step 1: Write the proportion equation
280,297.18 : 420,382.68 = 80,573.02 : x - Step 2: Convert to fraction form
280,297.18/420,382.68 = 80,573.02/x - Step 3: Cross multiply
280,297.18x = 420,382.68 × 80,573.02 - Step 4: Simplify right side
280,297.18x = 33,871,502,083.29 - Step 5: Solve for x
x = 33,871,502,083.29/280,297.18 - Step 6: Final answer
x = 120,841.39
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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.