Finding the Fourth Proportional to 299,396.70, 449,095.05 and 121,812.30
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Solution
The fourth proportional to 299,396.70, 449,095.05 and 121,812.30 is: 182,718.45
Step by Step Solution
- Step 1: Write the proportion equation
299,396.70 : 449,095.05 = 121,812.30 : x - Step 2: Convert to fraction form
299,396.70/449,095.05 = 121,812.30/x - Step 3: Cross multiply
299,396.70x = 449,095.05 × 121,812.30 - Step 4: Simplify right side
299,396.70x = 54,705,300,959.12 - Step 5: Solve for x
x = 54,705,300,959.12/299,396.70 - Step 6: Final answer
x = 182,718.45
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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.