Finding the Fourth Proportional to 290,808.36, 436,381.11 and 122,315.40
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Solution
The fourth proportional to 290,808.36, 436,381.11 and 122,315.40 is: 183,544.00
Step by Step Solution
- Step 1: Write the proportion equation
290,808.36 : 436,381.11 = 122,315.40 : x - Step 2: Convert to fraction form
290,808.36/436,381.11 = 122,315.40/x - Step 3: Cross multiply
290,808.36x = 436,381.11 × 122,315.40 - Step 4: Simplify right side
290,808.36x = 53,376,130,022.09 - Step 5: Solve for x
x = 53,376,130,022.09/290,808.36 - Step 6: Final answer
x = 183,544.00
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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.