Finding the Fourth Proportional to 213,489.16, 294,573.18 and 128,610.88
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Solution
The fourth proportional to 213,489.16, 294,573.18 and 128,610.88 is: 177,457.80
Step by Step Solution
- Step 1: Write the proportion equation
213,489.16 : 294,573.18 = 128,610.88 : x - Step 2: Convert to fraction form
213,489.16/294,573.18 = 128,610.88/x - Step 3: Cross multiply
213,489.16x = 294,573.18 × 128,610.88 - Step 4: Simplify right side
213,489.16x = 37,885,315,904.20 - Step 5: Solve for x
x = 37,885,315,904.20/213,489.16 - Step 6: Final answer
x = 177,457.80
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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.