Finding the Fourth Proportional to 201,754.77, 278,454.87 and 153,917.79
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Solution
The fourth proportional to 201,754.77, 278,454.87 and 153,917.79 is: 212,431.95
Step by Step Solution
- Step 1: Write the proportion equation
201,754.77 : 278,454.87 = 153,917.79 : x - Step 2: Convert to fraction form
201,754.77/278,454.87 = 153,917.79/x - Step 3: Cross multiply
201,754.77x = 278,454.87 × 153,917.79 - Step 4: Simplify right side
201,754.77x = 42,859,158,205.14 - Step 5: Solve for x
x = 42,859,158,205.14/201,754.77 - Step 6: Final answer
x = 212,431.95
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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.