Finding the Fourth Proportional to 268,051.21, 369,917.11 and 145,548.80
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Solution
The fourth proportional to 268,051.21, 369,917.11 and 145,548.80 is: 200,860.84
Step by Step Solution
- Step 1: Write the proportion equation
268,051.21 : 369,917.11 = 145,548.80 : x - Step 2: Convert to fraction form
268,051.21/369,917.11 = 145,548.80/x - Step 3: Cross multiply
268,051.21x = 369,917.11 × 145,548.80 - Step 4: Simplify right side
268,051.21x = 53,840,991,179.51 - Step 5: Solve for x
x = 53,840,991,179.51/268,051.21 - Step 6: Final answer
x = 200,860.84
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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.