Finding the Fourth Proportional to 285,260.48, 393,685.88 and 157,936.07
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Solution
The fourth proportional to 285,260.48, 393,685.88 and 157,936.07 is: 217,966.40
Step by Step Solution
- Step 1: Write the proportion equation
285,260.48 : 393,685.88 = 157,936.07 : x - Step 2: Convert to fraction form
285,260.48/393,685.88 = 157,936.07/x - Step 3: Cross multiply
285,260.48x = 393,685.88 × 157,936.07 - Step 4: Simplify right side
285,260.48x = 62,177,200,896.23 - Step 5: Solve for x
x = 62,177,200,896.23/285,260.48 - Step 6: Final answer
x = 217,966.40
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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.