Finding the Fourth Proportional to 190,246.15, 285,412.97 and 57,128.93
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Solution
The fourth proportional to 190,246.15, 285,412.97 and 57,128.93 is: 85,706.53
Step by Step Solution
- Step 1: Write the proportion equation
190,246.15 : 285,412.97 = 57,128.93 : x - Step 2: Convert to fraction form
190,246.15/285,412.97 = 57,128.93/x - Step 3: Cross multiply
190,246.15x = 285,412.97 × 57,128.93 - Step 4: Simplify right side
190,246.15x = 16,305,337,584.22 - Step 5: Solve for x
x = 16,305,337,584.22/190,246.15 - Step 6: Final answer
x = 85,706.53
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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.