Finding the Fourth Proportional to 405,825.40, 559,933.97 and 242,415.04
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Solution
The fourth proportional to 405,825.40, 559,933.97 and 242,415.04 is: 334,469.99
Step by Step Solution
- Step 1: Write the proportion equation
405,825.40 : 559,933.97 = 242,415.04 : x - Step 2: Convert to fraction form
405,825.40/559,933.97 = 242,415.04/x - Step 3: Cross multiply
405,825.40x = 559,933.97 × 242,415.04 - Step 4: Simplify right side
405,825.40x = 135,736,415,734.91 - Step 5: Solve for x
x = 135,736,415,734.91/405,825.40 - Step 6: Final answer
x = 334,469.99
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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.