Finding the Fourth Proportional to 324,435.60, 486,699.98 and 99,814.91
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Solution
The fourth proportional to 324,435.60, 486,699.98 and 99,814.91 is: 149,736.69
Step by Step Solution
- Step 1: Write the proportion equation
324,435.60 : 486,699.98 = 99,814.91 : x - Step 2: Convert to fraction form
324,435.60/486,699.98 = 99,814.91/x - Step 3: Cross multiply
324,435.60x = 486,699.98 × 99,814.91 - Step 4: Simplify right side
324,435.60x = 48,579,911,768.13 - Step 5: Solve for x
x = 48,579,911,768.13/324,435.60 - Step 6: Final answer
x = 149,736.69
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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.