Finding the Fourth Proportional to 286,836.29, 430,106.37 and 84,406.08
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Solution
The fourth proportional to 286,836.29, 430,106.37 and 84,406.08 is: 126,565.55
Step by Step Solution
- Step 1: Write the proportion equation
286,836.29 : 430,106.37 = 84,406.08 : x - Step 2: Convert to fraction form
286,836.29/430,106.37 = 84,406.08/x - Step 3: Cross multiply
286,836.29x = 430,106.37 × 84,406.08 - Step 4: Simplify right side
286,836.29x = 36,303,592,674.73 - Step 5: Solve for x
x = 36,303,592,674.73/286,836.29 - Step 6: Final answer
x = 126,565.55
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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.