Finding the Fourth Proportional to 212,939.97, 293,764.36 and 140,248.95
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Solution
The fourth proportional to 212,939.97, 293,764.36 and 140,248.95 is: 193,482.43
Step by Step Solution
- Step 1: Write the proportion equation
212,939.97 : 293,764.36 = 140,248.95 : x - Step 2: Convert to fraction form
212,939.97/293,764.36 = 140,248.95/x - Step 3: Cross multiply
212,939.97x = 293,764.36 × 140,248.95 - Step 4: Simplify right side
212,939.97x = 41,200,143,037.42 - Step 5: Solve for x
x = 41,200,143,037.42/212,939.97 - Step 6: Final answer
x = 193,482.43
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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.