Finding the Fourth Proportional to 427,160.01, 640,542.79 and 157,220.34
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Solution
The fourth proportional to 427,160.01, 640,542.79 and 157,220.34 is: 235,757.92
Step by Step Solution
- Step 1: Write the proportion equation
427,160.01 : 640,542.79 = 157,220.34 : x - Step 2: Convert to fraction form
427,160.01/640,542.79 = 157,220.34/x - Step 3: Cross multiply
427,160.01x = 640,542.79 × 157,220.34 - Step 4: Simplify right side
427,160.01x = 100,706,354,442.25 - Step 5: Solve for x
x = 100,706,354,442.25/427,160.01 - Step 6: Final answer
x = 235,757.92
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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.