Finding the Fourth Proportional to 170,643.80, 255,965.70 and 163,731.80
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Solution
The fourth proportional to 170,643.80, 255,965.70 and 163,731.80 is: 245,597.70
Step by Step Solution
- Step 1: Write the proportion equation
170,643.80 : 255,965.70 = 163,731.80 : x - Step 2: Convert to fraction form
170,643.80/255,965.70 = 163,731.80/x - Step 3: Cross multiply
170,643.80x = 255,965.70 × 163,731.80 - Step 4: Simplify right side
170,643.80x = 41,909,724,799.26 - Step 5: Solve for x
x = 41,909,724,799.26/170,643.80 - Step 6: Final answer
x = 245,597.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.