Finding the Fourth Proportional to 178,789.20, 246,740.76 and 98,216.88
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Solution
The fourth proportional to 178,789.20, 246,740.76 and 98,216.88 is: 135,545.70
Step by Step Solution
- Step 1: Write the proportion equation
178,789.20 : 246,740.76 = 98,216.88 : x - Step 2: Convert to fraction form
178,789.20/246,740.76 = 98,216.88/x - Step 3: Cross multiply
178,789.20x = 246,740.76 × 98,216.88 - Step 4: Simplify right side
178,789.20x = 24,234,107,616.03 - Step 5: Solve for x
x = 24,234,107,616.03/178,789.20 - Step 6: Final answer
x = 135,545.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.