Finding the Fourth Proportional to 354,401.57, 489,060.49 and 201,459.87
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Solution
The fourth proportional to 354,401.57, 489,060.49 and 201,459.87 is: 278,006.85
Step by Step Solution
- Step 1: Write the proportion equation
354,401.57 : 489,060.49 = 201,459.87 : x - Step 2: Convert to fraction form
354,401.57/489,060.49 = 201,459.87/x - Step 3: Cross multiply
354,401.57x = 489,060.49 × 201,459.87 - Step 4: Simplify right side
354,401.57x = 98,526,061,730.24 - Step 5: Solve for x
x = 98,526,061,730.24/354,401.57 - Step 6: Final answer
x = 278,006.85
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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.