Finding the Fourth Proportional to 211,766.63, 292,237.09 and 121,122.46
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Solution
The fourth proportional to 211,766.63, 292,237.09 and 121,122.46 is: 167,148.50
Step by Step Solution
- Step 1: Write the proportion equation
211,766.63 : 292,237.09 = 121,122.46 : x - Step 2: Convert to fraction form
211,766.63/292,237.09 = 121,122.46/x - Step 3: Cross multiply
211,766.63x = 292,237.09 × 121,122.46 - Step 4: Simplify right side
211,766.63x = 35,396,475,244.04 - Step 5: Solve for x
x = 35,396,475,244.04/211,766.63 - Step 6: Final answer
x = 167,148.50
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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.