Finding the Fourth Proportional to 320,408.30, 442,099.44 and 177,140.63
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Solution
The fourth proportional to 320,408.30, 442,099.44 and 177,140.63 is: 244,418.68
Step by Step Solution
- Step 1: Write the proportion equation
320,408.30 : 442,099.44 = 177,140.63 : x - Step 2: Convert to fraction form
320,408.30/442,099.44 = 177,140.63/x - Step 3: Cross multiply
320,408.30x = 442,099.44 × 177,140.63 - Step 4: Simplify right side
320,408.30x = 78,313,771,113.75 - Step 5: Solve for x
x = 78,313,771,113.75/320,408.30 - Step 6: Final answer
x = 244,418.68
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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.