Finding the Fourth Proportional to 226,258.20, 312,218.10 and 130,771.08
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Solution
The fourth proportional to 226,258.20, 312,218.10 and 130,771.08 is: 180,453.56
Step by Step Solution
- Step 1: Write the proportion equation
226,258.20 : 312,218.10 = 130,771.08 : x - Step 2: Convert to fraction form
226,258.20/312,218.10 = 130,771.08/x - Step 3: Cross multiply
226,258.20x = 312,218.10 × 130,771.08 - Step 4: Simplify right side
226,258.20x = 40,829,098,132.55 - Step 5: Solve for x
x = 40,829,098,132.55/226,258.20 - Step 6: Final answer
x = 180,453.56
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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.