Finding the Fourth Proportional to 391,395.88, 586,908.78 and 151,622.09
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Solution
The fourth proportional to 391,395.88, 586,908.78 and 151,622.09 is: 227,361.45
Step by Step Solution
- Step 1: Write the proportion equation
391,395.88 : 586,908.78 = 151,622.09 : x - Step 2: Convert to fraction form
391,395.88/586,908.78 = 151,622.09/x - Step 3: Cross multiply
391,395.88x = 586,908.78 × 151,622.09 - Step 4: Simplify right side
391,395.88x = 88,988,335,862.95 - Step 5: Solve for x
x = 88,988,335,862.95/391,395.88 - Step 6: Final answer
x = 227,361.45
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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.