Finding the Fourth Proportional to 312,569.97, 466,109.66 and 309,728.09
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Solution
The fourth proportional to 312,569.97, 466,109.66 and 309,728.09 is: 461,871.79
Step by Step Solution
- Step 1: Write the proportion equation
312,569.97 : 466,109.66 = 309,728.09 : x - Step 2: Convert to fraction form
312,569.97/466,109.66 = 309,728.09/x - Step 3: Cross multiply
312,569.97x = 466,109.66 × 309,728.09 - Step 4: Simplify right side
312,569.97x = 144,367,250,843.16 - Step 5: Solve for x
x = 144,367,250,843.16/312,569.97 - Step 6: Final answer
x = 461,871.79
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.