Finding the Fourth Proportional to 203,431.74, 280,752.36 and 112,816.08
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Solution
The fourth proportional to 203,431.74, 280,752.36 and 112,816.08 is: 155,695.37
Step by Step Solution
- Step 1: Write the proportion equation
203,431.74 : 280,752.36 = 112,816.08 : x - Step 2: Convert to fraction form
203,431.74/280,752.36 = 112,816.08/x - Step 3: Cross multiply
203,431.74x = 280,752.36 × 112,816.08 - Step 4: Simplify right side
203,431.74x = 31,673,380,705.95 - Step 5: Solve for x
x = 31,673,380,705.95/203,431.74 - Step 6: Final answer
x = 155,695.37
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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.