Finding the Fourth Proportional to 354,459.20, 489,134.23 and 201,476.12
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Solution
The fourth proportional to 354,459.20, 489,134.23 and 201,476.12 is: 278,025.98
Step by Step Solution
- Step 1: Write the proportion equation
354,459.20 : 489,134.23 = 201,476.12 : x - Step 2: Convert to fraction form
354,459.20/489,134.23 = 201,476.12/x - Step 3: Cross multiply
354,459.20x = 489,134.23 × 201,476.12 - Step 4: Simplify right side
354,459.20x = 98,548,863,870.23 - Step 5: Solve for x
x = 98,548,863,870.23/354,459.20 - Step 6: Final answer
x = 278,025.98
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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.