Finding the Fourth Proportional to 213,272.19, 294,372.63 and 122,638.05
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Solution
The fourth proportional to 213,272.19, 294,372.63 and 122,638.05 is: 169,273.29
Step by Step Solution
- Step 1: Write the proportion equation
213,272.19 : 294,372.63 = 122,638.05 : x - Step 2: Convert to fraction form
213,272.19/294,372.63 = 122,638.05/x - Step 3: Cross multiply
213,272.19x = 294,372.63 × 122,638.05 - Step 4: Simplify right side
213,272.19x = 36,101,285,316.57 - Step 5: Solve for x
x = 36,101,285,316.57/213,272.19 - Step 6: Final answer
x = 169,273.29
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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.