Finding the Fourth Proportional to 247,321.91, 371,009.75 and 78,802.63
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Solution
The fourth proportional to 247,321.91, 371,009.75 and 78,802.63 is: 118,212.50
Step by Step Solution
- Step 1: Write the proportion equation
247,321.91 : 371,009.75 = 78,802.63 : x - Step 2: Convert to fraction form
247,321.91/371,009.75 = 78,802.63/x - Step 3: Cross multiply
247,321.91x = 371,009.75 × 78,802.63 - Step 4: Simplify right side
247,321.91x = 29,236,542,186.22 - Step 5: Solve for x
x = 29,236,542,186.22/247,321.91 - Step 6: Final answer
x = 118,212.50
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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.