Finding the Fourth Proportional to 405,021.96, 558,919.47 and 223,729.99
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Solution
The fourth proportional to 405,021.96, 558,919.47 and 223,729.99 is: 308,741.40
Step by Step Solution
- Step 1: Write the proportion equation
405,021.96 : 558,919.47 = 223,729.99 : x - Step 2: Convert to fraction form
405,021.96/558,919.47 = 223,729.99/x - Step 3: Cross multiply
405,021.96x = 558,919.47 × 223,729.99 - Step 4: Simplify right side
405,021.96x = 125,047,047,433.91 - Step 5: Solve for x
x = 125,047,047,433.91/405,021.96 - Step 6: Final answer
x = 308,741.40
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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.