Finding the Fourth Proportional to 281,860.12, 388,984.98 and 186,199.12
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Solution
The fourth proportional to 281,860.12, 388,984.98 and 186,199.12 is: 256,966.69
Step by Step Solution
- Step 1: Write the proportion equation
281,860.12 : 388,984.98 = 186,199.12 : x - Step 2: Convert to fraction form
281,860.12/388,984.98 = 186,199.12/x - Step 3: Cross multiply
281,860.12x = 388,984.98 × 186,199.12 - Step 4: Simplify right side
281,860.12x = 72,428,660,969.22 - Step 5: Solve for x
x = 72,428,660,969.22/281,860.12 - Step 6: Final answer
x = 256,966.69
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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.