Finding the Fourth Proportional to 257,212.26, 355,126.26 and 160,563.30
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Solution
The fourth proportional to 257,212.26, 355,126.26 and 160,563.30 is: 221,685.56
Step by Step Solution
- Step 1: Write the proportion equation
257,212.26 : 355,126.26 = 160,563.30 : x - Step 2: Convert to fraction form
257,212.26/355,126.26 = 160,563.30/x - Step 3: Cross multiply
257,212.26x = 355,126.26 × 160,563.30 - Step 4: Simplify right side
257,212.26x = 57,020,244,222.26 - Step 5: Solve for x
x = 57,020,244,222.26/257,212.26 - Step 6: Final answer
x = 221,685.56
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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.