Finding the Fourth Proportional to 326,095.70, 489,143.55 and 247,363.70
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Solution
The fourth proportional to 326,095.70, 489,143.55 and 247,363.70 is: 371,045.55
Step by Step Solution
- Step 1: Write the proportion equation
326,095.70 : 489,143.55 = 247,363.70 : x - Step 2: Convert to fraction form
326,095.70/489,143.55 = 247,363.70/x - Step 3: Cross multiply
326,095.70x = 489,143.55 × 247,363.70 - Step 4: Simplify right side
326,095.70x = 120,996,358,359.14 - Step 5: Solve for x
x = 120,996,358,359.14/326,095.70 - Step 6: Final answer
x = 371,045.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.