Finding the Fourth Proportional to 354,846.36, 489,670.74 and 201,870.12
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Solution
The fourth proportional to 354,846.36, 489,670.74 and 201,870.12 is: 278,570.96
Step by Step Solution
- Step 1: Write the proportion equation
354,846.36 : 489,670.74 = 201,870.12 : x - Step 2: Convert to fraction form
354,846.36/489,670.74 = 201,870.12/x - Step 3: Cross multiply
354,846.36x = 489,670.74 × 201,870.12 - Step 4: Simplify right side
354,846.36x = 98,849,891,044.29 - Step 5: Solve for x
x = 98,849,891,044.29/354,846.36 - Step 6: Final answer
x = 278,570.96
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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.