Finding the Fourth Proportional to 408,319.10, 612,560.41 and 228,660.02
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Solution
The fourth proportional to 408,319.10, 612,560.41 and 228,660.02 is: 343,035.81
Step by Step Solution
- Step 1: Write the proportion equation
408,319.10 : 612,560.41 = 228,660.02 : x - Step 2: Convert to fraction form
408,319.10/612,560.41 = 228,660.02/x - Step 3: Cross multiply
408,319.10x = 612,560.41 × 228,660.02 - Step 4: Simplify right side
408,319.10x = 140,068,073,978.63 - Step 5: Solve for x
x = 140,068,073,978.63/408,319.10 - Step 6: Final answer
x = 343,035.81
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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.