Finding the Fourth Proportional to 205,814.24, 308,543.93 and 79,543.07
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Solution
The fourth proportional to 205,814.24, 308,543.93 and 79,543.07 is: 119,246.03
Step by Step Solution
- Step 1: Write the proportion equation
205,814.24 : 308,543.93 = 79,543.07 : x - Step 2: Convert to fraction form
205,814.24/308,543.93 = 79,543.07/x - Step 3: Cross multiply
205,814.24x = 308,543.93 × 79,543.07 - Step 4: Simplify right side
205,814.24x = 24,542,531,422.07 - Step 5: Solve for x
x = 24,542,531,422.07/205,814.24 - Step 6: Final answer
x = 119,246.03
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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.