Finding the Fourth Proportional to 323,779.80, 485,669.70 and 102,163.80
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Solution
The fourth proportional to 323,779.80, 485,669.70 and 102,163.80 is: 153,245.70
Step by Step Solution
- Step 1: Write the proportion equation
323,779.80 : 485,669.70 = 102,163.80 : x - Step 2: Convert to fraction form
323,779.80/485,669.70 = 102,163.80/x - Step 3: Cross multiply
323,779.80x = 485,669.70 × 102,163.80 - Step 4: Simplify right side
323,779.80x = 49,617,862,096.86 - Step 5: Solve for x
x = 49,617,862,096.86/323,779.80 - Step 6: Final answer
x = 153,245.70
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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.