Finding the Fourth Proportional to 281,862.12, 388,987.74 and 186,201.12
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Solution
The fourth proportional to 281,862.12, 388,987.74 and 186,201.12 is: 256,969.45
Step by Step Solution
- Step 1: Write the proportion equation
281,862.12 : 388,987.74 = 186,201.12 : x - Step 2: Convert to fraction form
281,862.12/388,987.74 = 186,201.12/x - Step 3: Cross multiply
281,862.12x = 388,987.74 × 186,201.12 - Step 4: Simplify right side
281,862.12x = 72,429,952,854.27 - Step 5: Solve for x
x = 72,429,952,854.27/281,862.12 - Step 6: Final answer
x = 256,969.45
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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.