Finding the Fourth Proportional to 326,775.80, 489,474.84 and 149,432.06
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Solution
The fourth proportional to 326,775.80, 489,474.84 and 149,432.06 is: 223,833.08
Step by Step Solution
- Step 1: Write the proportion equation
326,775.80 : 489,474.84 = 149,432.06 : x - Step 2: Convert to fraction form
326,775.80/489,474.84 = 149,432.06/x - Step 3: Cross multiply
326,775.80x = 489,474.84 × 149,432.06 - Step 4: Simplify right side
326,775.80x = 73,143,233,659.37 - Step 5: Solve for x
x = 73,143,233,659.37/326,775.80 - Step 6: Final answer
x = 223,833.08
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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.