Finding the Fourth Proportional to 281,749.47, 422,490.42 and 163,457.07
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Solution
The fourth proportional to 281,749.47, 422,490.42 and 163,457.07 is: 245,107.99
Step by Step Solution
- Step 1: Write the proportion equation
281,749.47 : 422,490.42 = 163,457.07 : x - Step 2: Convert to fraction form
281,749.47/422,490.42 = 163,457.07/x - Step 3: Cross multiply
281,749.47x = 422,490.42 × 163,457.07 - Step 4: Simplify right side
281,749.47x = 69,059,046,156.27 - Step 5: Solve for x
x = 69,059,046,156.27/281,749.47 - Step 6: Final answer
x = 245,107.99
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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.