Finding the Fourth Proportional to 411,292.26, 616,709.15 and 126,902.07
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Solution
The fourth proportional to 411,292.26, 616,709.15 and 126,902.07 is: 190,282.37
Step by Step Solution
- Step 1: Write the proportion equation
411,292.26 : 616,709.15 = 126,902.07 : x - Step 2: Convert to fraction form
411,292.26/616,709.15 = 126,902.07/x - Step 3: Cross multiply
411,292.26x = 616,709.15 × 126,902.07 - Step 4: Simplify right side
411,292.26x = 78,261,667,722.94 - Step 5: Solve for x
x = 78,261,667,722.94/411,292.26 - Step 6: Final answer
x = 190,282.37
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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.