Finding the Fourth Proportional to 392,548.51, 541,767.87 and 239,606.99
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Solution
The fourth proportional to 392,548.51, 541,767.87 and 239,606.99 is: 330,688.74
Step by Step Solution
- Step 1: Write the proportion equation
392,548.51 : 541,767.87 = 239,606.99 : x - Step 2: Convert to fraction form
392,548.51/541,767.87 = 239,606.99/x - Step 3: Cross multiply
392,548.51x = 541,767.87 × 239,606.99 - Step 4: Simplify right side
392,548.51x = 129,811,370,979.65 - Step 5: Solve for x
x = 129,811,370,979.65/392,548.51 - Step 6: Final answer
x = 330,688.74
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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.