Finding the Fourth Proportional to 280,577.36, 421,033.73 and 103,102.31
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Solution
The fourth proportional to 280,577.36, 421,033.73 and 103,102.31 is: 154,715.09
Step by Step Solution
- Step 1: Write the proportion equation
280,577.36 : 421,033.73 = 103,102.31 : x - Step 2: Convert to fraction form
280,577.36/421,033.73 = 103,102.31/x - Step 3: Cross multiply
280,577.36x = 421,033.73 × 103,102.31 - Step 4: Simplify right side
280,577.36x = 43,409,550,150.92 - Step 5: Solve for x
x = 43,409,550,150.92/280,577.36 - Step 6: Final answer
x = 154,715.09
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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.