Finding the Fourth Proportional to 354,430.14, 489,114.40 and 201,469.32
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Solution
The fourth proportional to 354,430.14, 489,114.40 and 201,469.32 is: 278,028.12
Step by Step Solution
- Step 1: Write the proportion equation
354,430.14 : 489,114.40 = 201,469.32 : x - Step 2: Convert to fraction form
354,430.14/489,114.40 = 201,469.32/x - Step 3: Cross multiply
354,430.14x = 489,114.40 × 201,469.32 - Step 4: Simplify right side
354,430.14x = 98,541,545,570.21 - Step 5: Solve for x
x = 98,541,545,570.21/354,430.14 - Step 6: Final answer
x = 278,028.12
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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.