Finding the Fourth Proportional to 286,896.81, 430,329.63 and 87,201.63
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Solution
The fourth proportional to 286,896.81, 430,329.63 and 87,201.63 is: 130,797.70
Step by Step Solution
- Step 1: Write the proportion equation
286,896.81 : 430,329.63 = 87,201.63 : x - Step 2: Convert to fraction form
286,896.81/430,329.63 = 87,201.63/x - Step 3: Cross multiply
286,896.81x = 430,329.63 × 87,201.63 - Step 4: Simplify right side
286,896.81x = 37,525,443,645.21 - Step 5: Solve for x
x = 37,525,443,645.21/286,896.81 - Step 6: Final answer
x = 130,797.70
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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.