Finding the Fourth Proportional to 211,818.23, 292,236.06 and 135,382.07
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Solution
The fourth proportional to 211,818.23, 292,236.06 and 135,382.07 is: 186,780.54
Step by Step Solution
- Step 1: Write the proportion equation
211,818.23 : 292,236.06 = 135,382.07 : x - Step 2: Convert to fraction form
211,818.23/292,236.06 = 135,382.07/x - Step 3: Cross multiply
211,818.23x = 292,236.06 × 135,382.07 - Step 4: Simplify right side
211,818.23x = 39,563,522,731.44 - Step 5: Solve for x
x = 39,563,522,731.44/211,818.23 - Step 6: Final answer
x = 186,780.54
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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.