Finding the Fourth Proportional to 208,424.06, 287,630.55 and 127,896.08
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Solution
The fourth proportional to 208,424.06, 287,630.55 and 127,896.08 is: 176,499.87
Step by Step Solution
- Step 1: Write the proportion equation
208,424.06 : 287,630.55 = 127,896.08 : x - Step 2: Convert to fraction form
208,424.06/287,630.55 = 127,896.08/x - Step 3: Cross multiply
208,424.06x = 287,630.55 × 127,896.08 - Step 4: Simplify right side
208,424.06x = 36,786,819,193.76 - Step 5: Solve for x
x = 36,786,819,193.76/208,424.06 - Step 6: Final answer
x = 176,499.87
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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.