Finding the Fourth Proportional to 237,448.71, 327,679.76 and 128,554.20
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Solution
The fourth proportional to 237,448.71, 327,679.76 and 128,554.20 is: 177,405.09
Step by Step Solution
- Step 1: Write the proportion equation
237,448.71 : 327,679.76 = 128,554.20 : x - Step 2: Convert to fraction form
237,448.71/327,679.76 = 128,554.20/x - Step 3: Cross multiply
237,448.71x = 327,679.76 × 128,554.20 - Step 4: Simplify right side
237,448.71x = 42,124,609,724.38 - Step 5: Solve for x
x = 42,124,609,724.38/237,448.71 - Step 6: Final answer
x = 177,405.09
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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.