Finding the Fourth Proportional to 194,444.80, 291,618.60 and 74,475.70
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Solution
The fourth proportional to 194,444.80, 291,618.60 and 74,475.70 is: 111,694.94
Step by Step Solution
- Step 1: Write the proportion equation
194,444.80 : 291,618.60 = 74,475.70 : x - Step 2: Convert to fraction form
194,444.80/291,618.60 = 74,475.70/x - Step 3: Cross multiply
194,444.80x = 291,618.60 × 74,475.70 - Step 4: Simplify right side
194,444.80x = 21,718,499,368.02 - Step 5: Solve for x
x = 21,718,499,368.02/194,444.80 - Step 6: Final answer
x = 111,694.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.