Finding the Fourth Proportional to 213,137.42, 294,108.66 and 117,637.92
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Solution
The fourth proportional to 213,137.42, 294,108.66 and 117,637.92 is: 162,328.75
Step by Step Solution
- Step 1: Write the proportion equation
213,137.42 : 294,108.66 = 117,637.92 : x - Step 2: Convert to fraction form
213,137.42/294,108.66 = 117,637.92/x - Step 3: Cross multiply
213,137.42x = 294,108.66 × 117,637.92 - Step 4: Simplify right side
213,137.42x = 34,598,331,016.39 - Step 5: Solve for x
x = 34,598,331,016.39/213,137.42 - Step 6: Final answer
x = 162,328.75
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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.