Finding the Fourth Proportional to 202,263.80, 279,006.18 and 129,640.82
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Solution
The fourth proportional to 202,263.80, 279,006.18 and 129,640.82 is: 178,828.78
Step by Step Solution
- Step 1: Write the proportion equation
202,263.80 : 279,006.18 = 129,640.82 : x - Step 2: Convert to fraction form
202,263.80/279,006.18 = 129,640.82/x - Step 3: Cross multiply
202,263.80x = 279,006.18 × 129,640.82 - Step 4: Simplify right side
202,263.80x = 36,170,588,565.24 - Step 5: Solve for x
x = 36,170,588,565.24/202,263.80 - Step 6: Final answer
x = 178,828.78
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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.