Finding the Fourth Proportional to 331,133.12, 456,963.36 and 180,229.76
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Solution
The fourth proportional to 331,133.12, 456,963.36 and 180,229.76 is: 248,716.88
Step by Step Solution
- Step 1: Write the proportion equation
331,133.12 : 456,963.36 = 180,229.76 : x - Step 2: Convert to fraction form
331,133.12/456,963.36 = 180,229.76/x - Step 3: Cross multiply
331,133.12x = 456,963.36 × 180,229.76 - Step 4: Simplify right side
331,133.12x = 82,358,396,701.59 - Step 5: Solve for x
x = 82,358,396,701.59/331,133.12 - Step 6: Final answer
x = 248,716.88
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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.