Finding the Fourth Proportional to 272,891.70, 409,337.55 and 198,533.70
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Solution
The fourth proportional to 272,891.70, 409,337.55 and 198,533.70 is: 297,800.55
Step by Step Solution
- Step 1: Write the proportion equation
272,891.70 : 409,337.55 = 198,533.70 : x - Step 2: Convert to fraction form
272,891.70/409,337.55 = 198,533.70/x - Step 3: Cross multiply
272,891.70x = 409,337.55 × 198,533.70 - Step 4: Simplify right side
272,891.70x = 81,267,298,350.44 - Step 5: Solve for x
x = 81,267,298,350.44/272,891.70 - Step 6: Final answer
x = 297,800.55
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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.