Finding the Fourth Proportional to 202,314.78, 279,176.70 and 129,589.37
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Solution
The fourth proportional to 202,314.78, 279,176.70 and 129,589.37 is: 178,821.99
Step by Step Solution
- Step 1: Write the proportion equation
202,314.78 : 279,176.70 = 129,589.37 : x - Step 2: Convert to fraction form
202,314.78/279,176.70 = 129,589.37/x - Step 3: Cross multiply
202,314.78x = 279,176.70 × 129,589.37 - Step 4: Simplify right side
202,314.78x = 36,178,331,275.80 - Step 5: Solve for x
x = 36,178,331,275.80/202,314.78 - Step 6: Final answer
x = 178,821.99
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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.