Finding the Fourth Proportional to 290,958.30, 436,437.97 and 91,294.02
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Solution
The fourth proportional to 290,958.30, 436,437.97 and 91,294.02 is: 136,941.19
Step by Step Solution
- Step 1: Write the proportion equation
290,958.30 : 436,437.97 = 91,294.02 : x - Step 2: Convert to fraction form
290,958.30/436,437.97 = 91,294.02/x - Step 3: Cross multiply
290,958.30x = 436,437.97 × 91,294.02 - Step 4: Simplify right side
290,958.30x = 39,844,176,533.70 - Step 5: Solve for x
x = 39,844,176,533.70/290,958.30 - Step 6: Final answer
x = 136,941.19
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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.