Finding the Fourth Proportional to 392,257.80, 588,386.70 and 107,947.80
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Solution
The fourth proportional to 392,257.80, 588,386.70 and 107,947.80 is: 161,921.70
Step by Step Solution
- Step 1: Write the proportion equation
392,257.80 : 588,386.70 = 107,947.80 : x - Step 2: Convert to fraction form
392,257.80/588,386.70 = 107,947.80/x - Step 3: Cross multiply
392,257.80x = 588,386.70 × 107,947.80 - Step 4: Simplify right side
392,257.80x = 63,515,049,814.26 - Step 5: Solve for x
x = 63,515,049,814.26/392,257.80 - Step 6: Final answer
x = 161,921.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.