Finding the Fourth Proportional to 211,875.75, 292,414.52 and 122,451.75
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Solution
The fourth proportional to 211,875.75, 292,414.52 and 122,451.75 is: 168,998.43
Step by Step Solution
- Step 1: Write the proportion equation
211,875.75 : 292,414.52 = 122,451.75 : x - Step 2: Convert to fraction form
211,875.75/292,414.52 = 122,451.75/x - Step 3: Cross multiply
211,875.75x = 292,414.52 × 122,451.75 - Step 4: Simplify right side
211,875.75x = 35,806,670,005.54 - Step 5: Solve for x
x = 35,806,670,005.54/211,875.75 - Step 6: Final answer
x = 168,998.43
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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.