Finding the Fourth Proportional to 365,372.01, 548,060.90 and 128,660.49
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Solution
The fourth proportional to 365,372.01, 548,060.90 and 128,660.49 is: 192,991.75
Step by Step Solution
- Step 1: Write the proportion equation
365,372.01 : 548,060.90 = 128,660.49 : x - Step 2: Convert to fraction form
365,372.01/548,060.90 = 128,660.49/x - Step 3: Cross multiply
365,372.01x = 548,060.90 × 128,660.49 - Step 4: Simplify right side
365,372.01x = 70,513,783,300.54 - Step 5: Solve for x
x = 70,513,783,300.54/365,372.01 - Step 6: Final answer
x = 192,991.75
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1.5x scale
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.