Finding the Fourth Proportional to 213,515.71, 294,450.29 and 137,058.19
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Solution
The fourth proportional to 213,515.71, 294,450.29 and 137,058.19 is: 189,011.03
Step by Step Solution
- Step 1: Write the proportion equation
213,515.71 : 294,450.29 = 137,058.19 : x - Step 2: Convert to fraction form
213,515.71/294,450.29 = 137,058.19/x - Step 3: Cross multiply
213,515.71x = 294,450.29 × 137,058.19 - Step 4: Simplify right side
213,515.71x = 40,356,824,541.21 - Step 5: Solve for x
x = 40,356,824,541.21/213,515.71 - Step 6: Final answer
x = 189,011.03
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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.