Finding the Fourth Proportional to 290,903.48, 401,449.21 and 163,577.96
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Solution
The fourth proportional to 290,903.48, 401,449.21 and 163,577.96 is: 225,738.94
Step by Step Solution
- Step 1: Write the proportion equation
290,903.48 : 401,449.21 = 163,577.96 : x - Step 2: Convert to fraction form
290,903.48/401,449.21 = 163,577.96/x - Step 3: Cross multiply
290,903.48x = 401,449.21 × 163,577.96 - Step 4: Simplify right side
290,903.48x = 65,668,242,815.41 - Step 5: Solve for x
x = 65,668,242,815.41/290,903.48 - Step 6: Final answer
x = 225,738.94
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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.