Finding the Fourth Proportional to 399,486.38, 599,231.84 and 133,246.17
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Solution
The fourth proportional to 399,486.38, 599,231.84 and 133,246.17 is: 199,870.00
Step by Step Solution
- Step 1: Write the proportion equation
399,486.38 : 599,231.84 = 133,246.17 : x - Step 2: Convert to fraction form
399,486.38/599,231.84 = 133,246.17/x - Step 3: Cross multiply
399,486.38x = 599,231.84 × 133,246.17 - Step 4: Simplify right side
399,486.38x = 79,845,344,708.70 - Step 5: Solve for x
x = 79,845,344,708.70/399,486.38 - Step 6: Final answer
x = 199,870.00
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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.