Finding the Fourth Proportional to 281,485.26, 388,353.24 and 160,539.59
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Solution
The fourth proportional to 281,485.26, 388,353.24 and 160,539.59 is: 221,489.65
Step by Step Solution
- Step 1: Write the proportion equation
281,485.26 : 388,353.24 = 160,539.59 : x - Step 2: Convert to fraction form
281,485.26/388,353.24 = 160,539.59/x - Step 3: Cross multiply
281,485.26x = 388,353.24 × 160,539.59 - Step 4: Simplify right side
281,485.26x = 62,346,070,895.65 - Step 5: Solve for x
x = 62,346,070,895.65/281,485.26 - Step 6: Final answer
x = 221,489.65
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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.