Finding the Fourth Proportional to 505,419.98, 757,876.39 and 168,342.08
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Solution
The fourth proportional to 505,419.98, 757,876.39 and 168,342.08 is: 252,428.66
Step by Step Solution
- Step 1: Write the proportion equation
505,419.98 : 757,876.39 = 168,342.08 : x - Step 2: Convert to fraction form
505,419.98/757,876.39 = 168,342.08/x - Step 3: Cross multiply
505,419.98x = 757,876.39 × 168,342.08 - Step 4: Simplify right side
505,419.98x = 127,582,487,875.49 - Step 5: Solve for x
x = 127,582,487,875.49/505,419.98 - Step 6: Final answer
x = 252,428.66
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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.