Finding the Fourth Proportional to 290,851.84, 436,265.06 and 91,167.68
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Solution
The fourth proportional to 290,851.84, 436,265.06 and 91,167.68 is: 136,747.54
Step by Step Solution
- Step 1: Write the proportion equation
290,851.84 : 436,265.06 = 91,167.68 : x - Step 2: Convert to fraction form
290,851.84/436,265.06 = 91,167.68/x - Step 3: Cross multiply
290,851.84x = 436,265.06 × 91,167.68 - Step 4: Simplify right side
290,851.84x = 39,773,273,385.26 - Step 5: Solve for x
x = 39,773,273,385.26/290,851.84 - Step 6: Final answer
x = 136,747.54
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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.