Finding the Fourth Proportional to 208,169.28, 287,327.43 and 135,752.68
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Solution
The fourth proportional to 208,169.28, 287,327.43 and 135,752.68 is: 187,373.80
Step by Step Solution
- Step 1: Write the proportion equation
208,169.28 : 287,327.43 = 135,752.68 : x - Step 2: Convert to fraction form
208,169.28/287,327.43 = 135,752.68/x - Step 3: Cross multiply
208,169.28x = 287,327.43 × 135,752.68 - Step 4: Simplify right side
208,169.28x = 39,005,468,660.01 - Step 5: Solve for x
x = 39,005,468,660.01/208,169.28 - Step 6: Final answer
x = 187,373.80
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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.