Finding the Fourth Proportional to 281,728.04, 422,728.74 and 123,935.99
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Solution
The fourth proportional to 281,728.04, 422,728.74 and 123,935.99 is: 185,964.11
Step by Step Solution
- Step 1: Write the proportion equation
281,728.04 : 422,728.74 = 123,935.99 : x - Step 2: Convert to fraction form
281,728.04/422,728.74 = 123,935.99/x - Step 3: Cross multiply
281,728.04x = 422,728.74 × 123,935.99 - Step 4: Simplify right side
281,728.04x = 52,391,302,779.71 - Step 5: Solve for x
x = 52,391,302,779.71/281,728.04 - Step 6: Final answer
x = 185,964.11
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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.