Finding the Fourth Proportional to 298,780.40, 447,652.20 and 193,545.20
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Solution
The fourth proportional to 298,780.40, 447,652.20 and 193,545.20 is: 289,981.99
Step by Step Solution
- Step 1: Write the proportion equation
298,780.40 : 447,652.20 = 193,545.20 : x - Step 2: Convert to fraction form
298,780.40/447,652.20 = 193,545.20/x - Step 3: Cross multiply
298,780.40x = 447,652.20 × 193,545.20 - Step 4: Simplify right side
298,780.40x = 86,640,934,579.44 - Step 5: Solve for x
x = 86,640,934,579.44/298,780.40 - Step 6: Final answer
x = 289,981.99
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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.