Finding the Fourth Proportional to 208,202.06, 287,248.20 and 135,571.79
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Solution
The fourth proportional to 208,202.06, 287,248.20 and 135,571.79 is: 187,043.07
Step by Step Solution
- Step 1: Write the proportion equation
208,202.06 : 287,248.20 = 135,571.79 : x - Step 2: Convert to fraction form
208,202.06/287,248.20 = 135,571.79/x - Step 3: Cross multiply
208,202.06x = 287,248.20 × 135,571.79 - Step 4: Simplify right side
208,202.06x = 38,942,752,648.28 - Step 5: Solve for x
x = 38,942,752,648.28/208,202.06 - Step 6: Final answer
x = 187,043.07
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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.