Finding the Fourth Proportional to 285,272.44, 393,688.27 and 157,948.03
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Solution
The fourth proportional to 285,272.44, 393,688.27 and 157,948.03 is: 217,975.09
Step by Step Solution
- Step 1: Write the proportion equation
285,272.44 : 393,688.27 = 157,948.03 : x - Step 2: Convert to fraction form
285,272.44/393,688.27 = 157,948.03/x - Step 3: Cross multiply
285,272.44x = 393,688.27 × 157,948.03 - Step 4: Simplify right side
285,272.44x = 62,182,286,481.70 - Step 5: Solve for x
x = 62,182,286,481.70/285,272.44 - Step 6: Final answer
x = 217,975.09
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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.