Finding the Fourth Proportional to 280,249.08, 420,361.86 and 130,437.84
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Solution
The fourth proportional to 280,249.08, 420,361.86 and 130,437.84 is: 195,651.29
Step by Step Solution
- Step 1: Write the proportion equation
280,249.08 : 420,361.86 = 130,437.84 : x - Step 2: Convert to fraction form
280,249.08/420,361.86 = 130,437.84/x - Step 3: Cross multiply
280,249.08x = 420,361.86 × 130,437.84 - Step 4: Simplify right side
280,249.08x = 54,831,093,036.78 - Step 5: Solve for x
x = 54,831,093,036.78/280,249.08 - Step 6: Final answer
x = 195,651.29
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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.