Finding the Fourth Proportional to 213,274.12, 294,315.84 and 122,630.45
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Solution
The fourth proportional to 213,274.12, 294,315.84 and 122,630.45 is: 169,228.61
Step by Step Solution
- Step 1: Write the proportion equation
213,274.12 : 294,315.84 = 122,630.45 : x - Step 2: Convert to fraction form
213,274.12/294,315.84 = 122,630.45/x - Step 3: Cross multiply
213,274.12x = 294,315.84 × 122,630.45 - Step 4: Simplify right side
213,274.12x = 36,092,082,429.75 - Step 5: Solve for x
x = 36,092,082,429.75/213,274.12 - Step 6: Final answer
x = 169,228.61
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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.