Finding the Fourth Proportional to 547,487.12, 821,232.58 and 168,405.28
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Solution
The fourth proportional to 547,487.12, 821,232.58 and 168,405.28 is: 252,608.50
Step by Step Solution
- Step 1: Write the proportion equation
547,487.12 : 821,232.58 = 168,405.28 : x - Step 2: Convert to fraction form
547,487.12/821,232.58 = 168,405.28/x - Step 3: Cross multiply
547,487.12x = 821,232.58 × 168,405.28 - Step 4: Simplify right side
547,487.12x = 138,299,902,580.02 - Step 5: Solve for x
x = 138,299,902,580.02/547,487.12 - Step 6: Final answer
x = 252,608.50
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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.