Finding the Fourth Proportional to 150,573.13, 208,034.99 and 128,149.09
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Solution
The fourth proportional to 150,573.13, 208,034.99 and 128,149.09 is: 177,053.46
Step by Step Solution
- Step 1: Write the proportion equation
150,573.13 : 208,034.99 = 128,149.09 : x - Step 2: Convert to fraction form
150,573.13/208,034.99 = 128,149.09/x - Step 3: Cross multiply
150,573.13x = 208,034.99 × 128,149.09 - Step 4: Simplify right side
150,573.13x = 26,659,494,076.24 - Step 5: Solve for x
x = 26,659,494,076.24/150,573.13 - Step 6: Final answer
x = 177,053.46
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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.