Finding the Fourth Proportional to 326,328.63, 489,492.96 and 115,974.87
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Solution
The fourth proportional to 326,328.63, 489,492.96 and 115,974.87 is: 173,962.31
Step by Step Solution
- Step 1: Write the proportion equation
326,328.63 : 489,492.96 = 115,974.87 : x - Step 2: Convert to fraction form
326,328.63/489,492.96 = 115,974.87/x - Step 3: Cross multiply
326,328.63x = 489,492.96 × 115,974.87 - Step 4: Simplify right side
326,328.63x = 56,768,882,401.92 - Step 5: Solve for x
x = 56,768,882,401.92/326,328.63 - Step 6: Final answer
x = 173,962.31
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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.