Finding the Fourth Proportional to 289,861.15, 400,000.29 and 160,798.99
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Solution
The fourth proportional to 289,861.15, 400,000.29 and 160,798.99 is: 221,898.11
Step by Step Solution
- Step 1: Write the proportion equation
289,861.15 : 400,000.29 = 160,798.99 : x - Step 2: Convert to fraction form
289,861.15/400,000.29 = 160,798.99/x - Step 3: Cross multiply
289,861.15x = 400,000.29 × 160,798.99 - Step 4: Simplify right side
289,861.15x = 64,319,642,631.71 - Step 5: Solve for x
x = 64,319,642,631.71/289,861.15 - Step 6: Final answer
x = 221,898.11
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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.