Finding the Fourth Proportional to 391,392.88, 586,904.28 and 151,619.09
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Solution
The fourth proportional to 391,392.88, 586,904.28 and 151,619.09 is: 227,356.95
Step by Step Solution
- Step 1: Write the proportion equation
391,392.88 : 586,904.28 = 151,619.09 : x - Step 2: Convert to fraction form
391,392.88/586,904.28 = 151,619.09/x - Step 3: Cross multiply
391,392.88x = 586,904.28 × 151,619.09 - Step 4: Simplify right side
391,392.88x = 88,985,892,685.65 - Step 5: Solve for x
x = 88,985,892,685.65/391,392.88 - Step 6: Final answer
x = 227,356.95
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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.