Finding the Fourth Proportional to 211,828.81, 292,195.39 and 125,731.07
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Solution
The fourth proportional to 211,828.81, 292,195.39 and 125,731.07 is: 173,432.68
Step by Step Solution
- Step 1: Write the proportion equation
211,828.81 : 292,195.39 = 125,731.07 : x - Step 2: Convert to fraction form
211,828.81/292,195.39 = 125,731.07/x - Step 3: Cross multiply
211,828.81x = 292,195.39 × 125,731.07 - Step 4: Simplify right side
211,828.81x = 36,738,039,033.77 - Step 5: Solve for x
x = 36,738,039,033.77/211,828.81 - Step 6: Final answer
x = 173,432.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.