Finding the Fourth Proportional to 305,539.64, 420,149.14 and 265,183.12
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Solution
The fourth proportional to 305,539.64, 420,149.14 and 265,183.12 is: 364,654.68
Step by Step Solution
- Step 1: Write the proportion equation
305,539.64 : 420,149.14 = 265,183.12 : x - Step 2: Convert to fraction form
305,539.64/420,149.14 = 265,183.12/x - Step 3: Cross multiply
305,539.64x = 420,149.14 × 265,183.12 - Step 4: Simplify right side
305,539.64x = 111,416,459,810.52 - Step 5: Solve for x
x = 111,416,459,810.52/305,539.64 - Step 6: Final answer
x = 364,654.68
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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.