Finding the Fourth Proportional to 354,888.02, 489,716.06 and 201,885.50
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Solution
The fourth proportional to 354,888.02, 489,716.06 and 201,885.50 is: 278,585.26
Step by Step Solution
- Step 1: Write the proportion equation
354,888.02 : 489,716.06 = 201,885.50 : x - Step 2: Convert to fraction form
354,888.02/489,716.06 = 201,885.50/x - Step 3: Cross multiply
354,888.02x = 489,716.06 × 201,885.50 - Step 4: Simplify right side
354,888.02x = 98,866,571,631.13 - Step 5: Solve for x
x = 98,866,571,631.13/354,888.02 - Step 6: Final answer
x = 278,585.26
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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.