Finding the Fourth Proportional to 354,887.34, 489,715.11 and 201,884.82
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Solution
The fourth proportional to 354,887.34, 489,715.11 and 201,884.82 is: 278,584.32
Step by Step Solution
- Step 1: Write the proportion equation
354,887.34 : 489,715.11 = 201,884.82 : x - Step 2: Convert to fraction form
354,887.34/489,715.11 = 201,884.82/x - Step 3: Cross multiply
354,887.34x = 489,715.11 × 201,884.82 - Step 4: Simplify right side
354,887.34x = 98,866,046,833.63 - Step 5: Solve for x
x = 98,866,046,833.63/354,887.34 - Step 6: Final answer
x = 278,584.32
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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.