Finding the Fourth Proportional to 305,829.12, 422,037.36 and 169,855.44
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Solution
The fourth proportional to 305,829.12, 422,037.36 and 169,855.44 is: 234,396.72
Step by Step Solution
- Step 1: Write the proportion equation
305,829.12 : 422,037.36 = 169,855.44 : x - Step 2: Convert to fraction form
305,829.12/422,037.36 = 169,855.44/x - Step 3: Cross multiply
305,829.12x = 422,037.36 × 169,855.44 - Step 4: Simplify right side
305,829.12x = 71,685,341,479.24 - Step 5: Solve for x
x = 71,685,341,479.24/305,829.12 - Step 6: Final answer
x = 234,396.72
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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.