Finding the Fourth Proportional to 290,809.73, 436,284.18 and 140,874.75
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Solution
The fourth proportional to 290,809.73, 436,284.18 and 140,874.75 is: 211,345.84
Step by Step Solution
- Step 1: Write the proportion equation
290,809.73 : 436,284.18 = 140,874.75 : x - Step 2: Convert to fraction form
290,809.73/436,284.18 = 140,874.75/x - Step 3: Cross multiply
290,809.73x = 436,284.18 × 140,874.75 - Step 4: Simplify right side
290,809.73x = 61,461,424,786.46 - Step 5: Solve for x
x = 61,461,424,786.46/290,809.73 - Step 6: Final answer
x = 211,345.84
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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.