Finding the Fourth Proportional to 395,699.12, 546,052.92 and 225,900.08
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Solution
The fourth proportional to 395,699.12, 546,052.92 and 225,900.08 is: 311,735.34
Step by Step Solution
- Step 1: Write the proportion equation
395,699.12 : 546,052.92 = 225,900.08 : x - Step 2: Convert to fraction form
395,699.12/546,052.92 = 225,900.08/x - Step 3: Cross multiply
395,699.12x = 546,052.92 × 225,900.08 - Step 4: Simplify right side
395,699.12x = 123,353,398,312.23 - Step 5: Solve for x
x = 123,353,398,312.23/395,699.12 - Step 6: Final answer
x = 311,735.34
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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.