Finding the Fourth Proportional to 290,721.70, 436,082.55 and 241,569.70
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Solution
The fourth proportional to 290,721.70, 436,082.55 and 241,569.70 is: 362,354.55
Step by Step Solution
- Step 1: Write the proportion equation
290,721.70 : 436,082.55 = 241,569.70 : x - Step 2: Convert to fraction form
290,721.70/436,082.55 = 241,569.70/x - Step 3: Cross multiply
290,721.70x = 436,082.55 × 241,569.70 - Step 4: Simplify right side
290,721.70x = 105,344,330,778.74 - Step 5: Solve for x
x = 105,344,330,778.74/290,721.70 - Step 6: Final answer
x = 362,354.55
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1.5x scale
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.