Finding the Fourth Proportional to 202,539.60, 279,511.56 and 127,129.68
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Solution
The fourth proportional to 202,539.60, 279,511.56 and 127,129.68 is: 175,443.30
Step by Step Solution
- Step 1: Write the proportion equation
202,539.60 : 279,511.56 = 127,129.68 : x - Step 2: Convert to fraction form
202,539.60/279,511.56 = 127,129.68/x - Step 3: Cross multiply
202,539.60x = 279,511.56 × 127,129.68 - Step 4: Simplify right side
202,539.60x = 35,534,215,179.10 - Step 5: Solve for x
x = 35,534,215,179.10/202,539.60 - Step 6: Final answer
x = 175,443.30
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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.