Finding the Fourth Proportional to 213,384.92, 294,378.18 and 122,721.08
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Solution
The fourth proportional to 213,384.92, 294,378.18 and 122,721.08 is: 169,301.60
Step by Step Solution
- Step 1: Write the proportion equation
213,384.92 : 294,378.18 = 122,721.08 : x - Step 2: Convert to fraction form
213,384.92/294,378.18 = 122,721.08/x - Step 3: Cross multiply
213,384.92x = 294,378.18 × 122,721.08 - Step 4: Simplify right side
213,384.92x = 36,126,408,178.03 - Step 5: Solve for x
x = 36,126,408,178.03/213,384.92 - Step 6: Final answer
x = 169,301.60
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1.5x scale
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.