Finding the Fourth Proportional to 326,237.20, 489,355.80 and 292,022.80
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Solution
The fourth proportional to 326,237.20, 489,355.80 and 292,022.80 is: 438,034.20
Step by Step Solution
- Step 1: Write the proportion equation
326,237.20 : 489,355.80 = 292,022.80 : x - Step 2: Convert to fraction form
326,237.20/489,355.80 = 292,022.80/x - Step 3: Cross multiply
326,237.20x = 489,355.80 × 292,022.80 - Step 4: Simplify right side
326,237.20x = 142,903,050,912.24 - Step 5: Solve for x
x = 142,903,050,912.24/326,237.20 - Step 6: Final answer
x = 438,034.20
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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.