Finding the Fourth Proportional to 405,338.24, 559,369.02 and 221,577.10
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Solution
The fourth proportional to 405,338.24, 559,369.02 and 221,577.10 is: 305,777.63
Step by Step Solution
- Step 1: Write the proportion equation
405,338.24 : 559,369.02 = 221,577.10 : x - Step 2: Convert to fraction form
405,338.24/559,369.02 = 221,577.10/x - Step 3: Cross multiply
405,338.24x = 559,369.02 × 221,577.10 - Step 4: Simplify right side
405,338.24x = 123,943,365,281.44 - Step 5: Solve for x
x = 123,943,365,281.44/405,338.24 - Step 6: Final answer
x = 305,777.63
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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.