Finding the Fourth Proportional to 354,920.90, 489,784.19 and 201,955.64
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Solution
The fourth proportional to 354,920.90, 489,784.19 and 201,955.64 is: 278,694.99
Step by Step Solution
- Step 1: Write the proportion equation
354,920.90 : 489,784.19 = 201,955.64 : x - Step 2: Convert to fraction form
354,920.90/489,784.19 = 201,955.64/x - Step 3: Cross multiply
354,920.90x = 489,784.19 × 201,955.64 - Step 4: Simplify right side
354,920.90x = 98,914,676,094.63 - Step 5: Solve for x
x = 98,914,676,094.63/354,920.90 - Step 6: Final answer
x = 278,694.99
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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.