Finding the Fourth Proportional to 245,631.20, 368,446.80 and 133,656.80
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Solution
The fourth proportional to 245,631.20, 368,446.80 and 133,656.80 is: 200,485.20
Step by Step Solution
- Step 1: Write the proportion equation
245,631.20 : 368,446.80 = 133,656.80 : x - Step 2: Convert to fraction form
245,631.20/368,446.80 = 133,656.80/x - Step 3: Cross multiply
245,631.20x = 368,446.80 × 133,656.80 - Step 4: Simplify right side
245,631.20x = 49,245,420,258.24 - Step 5: Solve for x
x = 49,245,420,258.24/245,631.20 - Step 6: Final answer
x = 200,485.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.