Finding the Fourth Proportional to 326,072.70, 489,195.45 and 115,688.70
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Solution
The fourth proportional to 326,072.70, 489,195.45 and 115,688.70 is: 173,563.70
Step by Step Solution
- Step 1: Write the proportion equation
326,072.70 : 489,195.45 = 115,688.70 : x - Step 2: Convert to fraction form
326,072.70/489,195.45 = 115,688.70/x - Step 3: Cross multiply
326,072.70x = 489,195.45 × 115,688.70 - Step 4: Simplify right side
326,072.70x = 56,594,385,656.42 - Step 5: Solve for x
x = 56,594,385,656.42/326,072.70 - Step 6: Final answer
x = 173,563.70
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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.