Finding the Fourth Proportional to 387,974.58, 535,101.12 and 252,052.02
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Solution
The fourth proportional to 387,974.58, 535,101.12 and 252,052.02 is: 347,634.42
Step by Step Solution
- Step 1: Write the proportion equation
387,974.58 : 535,101.12 = 252,052.02 : x - Step 2: Convert to fraction form
387,974.58/535,101.12 = 252,052.02/x - Step 3: Cross multiply
387,974.58x = 535,101.12 × 252,052.02 - Step 4: Simplify right side
387,974.58x = 134,873,318,200.26 - Step 5: Solve for x
x = 134,873,318,200.26/387,974.58 - Step 6: Final answer
x = 347,634.42
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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.