Finding the Fourth Proportional to 272,360.25, 408,605.99 and 85,371.75
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Solution
The fourth proportional to 272,360.25, 408,605.99 and 85,371.75 is: 128,078.19
Step by Step Solution
- Step 1: Write the proportion equation
272,360.25 : 408,605.99 = 85,371.75 : x - Step 2: Convert to fraction form
272,360.25/408,605.99 = 85,371.75/x - Step 3: Cross multiply
272,360.25x = 408,605.99 × 85,371.75 - Step 4: Simplify right side
272,360.25x = 34,883,407,999.92 - Step 5: Solve for x
x = 34,883,407,999.92/272,360.25 - Step 6: Final answer
x = 128,078.19
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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.