Finding the Fourth Proportional to 202,619.20, 279,625.20 and 122,072.08
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Solution
The fourth proportional to 202,619.20, 279,625.20 and 122,072.08 is: 168,465.92
Step by Step Solution
- Step 1: Write the proportion equation
202,619.20 : 279,625.20 = 122,072.08 : x - Step 2: Convert to fraction form
202,619.20/279,625.20 = 122,072.08/x - Step 3: Cross multiply
202,619.20x = 279,625.20 × 122,072.08 - Step 4: Simplify right side
202,619.20x = 34,134,429,784.42 - Step 5: Solve for x
x = 34,134,429,784.42/202,619.20 - Step 6: Final answer
x = 168,465.92
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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.