Finding the Fourth Proportional to 405,648.96, 559,778.49 and 221,884.53
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Solution
The fourth proportional to 405,648.96, 559,778.49 and 221,884.53 is: 306,191.31
Step by Step Solution
- Step 1: Write the proportion equation
405,648.96 : 559,778.49 = 221,884.53 : x - Step 2: Convert to fraction form
405,648.96/559,778.49 = 221,884.53/x - Step 3: Cross multiply
405,648.96x = 559,778.49 × 221,884.53 - Step 4: Simplify right side
405,648.96x = 124,206,187,157.76 - Step 5: Solve for x
x = 124,206,187,157.76/405,648.96 - Step 6: Final answer
x = 306,191.31
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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.