Finding the Fourth Proportional to 208,427.06, 287,634.70 and 127,899.08
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Solution
The fourth proportional to 208,427.06, 287,634.70 and 127,899.08 is: 176,504.02
Step by Step Solution
- Step 1: Write the proportion equation
208,427.06 : 287,634.70 = 127,899.08 : x - Step 2: Convert to fraction form
208,427.06/287,634.70 = 127,899.08/x - Step 3: Cross multiply
208,427.06x = 287,634.70 × 127,899.08 - Step 4: Simplify right side
208,427.06x = 36,788,213,506.08 - Step 5: Solve for x
x = 36,788,213,506.08/208,427.06 - Step 6: Final answer
x = 176,504.02
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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.