Finding the Fourth Proportional to 286,779.21, 430,168.77 and 136,564.07
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Solution
The fourth proportional to 286,779.21, 430,168.77 and 136,564.07 is: 204,846.08
Step by Step Solution
- Step 1: Write the proportion equation
286,779.21 : 430,168.77 = 136,564.07 : x - Step 2: Convert to fraction form
286,779.21/430,168.77 = 136,564.07/x - Step 3: Cross multiply
286,779.21x = 430,168.77 × 136,564.07 - Step 4: Simplify right side
286,779.21x = 58,745,595,867.25 - Step 5: Solve for x
x = 58,745,595,867.25/286,779.21 - Step 6: Final answer
x = 204,846.08
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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.