Finding the Fourth Proportional to 283,571.08, 391,345.56 and 156,246.64
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Solution
The fourth proportional to 283,571.08, 391,345.56 and 156,246.64 is: 215,629.99
Step by Step Solution
- Step 1: Write the proportion equation
283,571.08 : 391,345.56 = 156,246.64 : x - Step 2: Convert to fraction form
283,571.08/391,345.56 = 156,246.64/x - Step 3: Cross multiply
283,571.08x = 391,345.56 × 156,246.64 - Step 4: Simplify right side
283,571.08x = 61,146,428,828.92 - Step 5: Solve for x
x = 61,146,428,828.92/283,571.08 - Step 6: Final answer
x = 215,629.99
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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.