Finding the Fourth Proportional to 312,778.01, 431,634.39 and 169,537.41
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Solution
The fourth proportional to 312,778.01, 431,634.39 and 169,537.41 is: 233,962.02
Step by Step Solution
- Step 1: Write the proportion equation
312,778.01 : 431,634.39 = 169,537.41 : x - Step 2: Convert to fraction form
312,778.01/431,634.39 = 169,537.41/x - Step 3: Cross multiply
312,778.01x = 431,634.39 × 169,537.41 - Step 4: Simplify right side
312,778.01x = 73,178,175,911.76 - Step 5: Solve for x
x = 73,178,175,911.76/312,778.01 - Step 6: Final answer
x = 233,962.02
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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.