Finding the Fourth Proportional to 286,836.12, 430,182.64 and 84,391.94
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Solution
The fourth proportional to 286,836.12, 430,182.64 and 84,391.94 is: 126,566.86
Step by Step Solution
- Step 1: Write the proportion equation
286,836.12 : 430,182.64 = 84,391.94 : x - Step 2: Convert to fraction form
286,836.12/430,182.64 = 84,391.94/x - Step 3: Cross multiply
286,836.12x = 430,182.64 × 84,391.94 - Step 4: Simplify right side
286,836.12x = 36,303,947,754.90 - Step 5: Solve for x
x = 36,303,947,754.90/286,836.12 - Step 6: Final answer
x = 126,566.86
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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.