Finding the Fourth Proportional to 172,779.62, 238,455.29 and 96,305.70
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Solution
The fourth proportional to 172,779.62, 238,455.29 and 96,305.70 is: 132,912.69
Step by Step Solution
- Step 1: Write the proportion equation
172,779.62 : 238,455.29 = 96,305.70 : x - Step 2: Convert to fraction form
172,779.62/238,455.29 = 96,305.70/x - Step 3: Cross multiply
172,779.62x = 238,455.29 × 96,305.70 - Step 4: Simplify right side
172,779.62x = 22,964,603,622.15 - Step 5: Solve for x
x = 22,964,603,622.15/172,779.62 - Step 6: Final answer
x = 132,912.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.