Finding the Fourth Proportional to 286,764.29, 430,147.14 and 87,086.19
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Solution
The fourth proportional to 286,764.29, 430,147.14 and 87,086.19 is: 130,629.50
Step by Step Solution
- Step 1: Write the proportion equation
286,764.29 : 430,147.14 = 87,086.19 : x - Step 2: Convert to fraction form
286,764.29/430,147.14 = 87,086.19/x - Step 3: Cross multiply
286,764.29x = 430,147.14 × 87,086.19 - Step 4: Simplify right side
286,764.29x = 37,459,875,562.00 - Step 5: Solve for x
x = 37,459,875,562.00/286,764.29 - Step 6: Final answer
x = 130,629.50
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1.5x scale
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.