Finding the Fourth Proportional to 324,113.12, 486,169.65 and 87,455.79
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Solution
The fourth proportional to 324,113.12, 486,169.65 and 87,455.79 is: 131,183.68
Step by Step Solution
- Step 1: Write the proportion equation
324,113.12 : 486,169.65 = 87,455.79 : x - Step 2: Convert to fraction form
324,113.12/486,169.65 = 87,455.79/x - Step 3: Cross multiply
324,113.12x = 486,169.65 × 87,455.79 - Step 4: Simplify right side
324,113.12x = 42,518,350,814.77 - Step 5: Solve for x
x = 42,518,350,814.77/324,113.12 - Step 6: Final answer
x = 131,183.68
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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.