Finding the Fourth Proportional to 289,449.12, 399,445.57 and 168,598.19
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Solution
The fourth proportional to 289,449.12, 399,445.57 and 168,598.19 is: 232,668.87
Step by Step Solution
- Step 1: Write the proportion equation
289,449.12 : 399,445.57 = 168,598.19 : x - Step 2: Convert to fraction form
289,449.12/399,445.57 = 168,598.19/x - Step 3: Cross multiply
289,449.12x = 399,445.57 × 168,598.19 - Step 4: Simplify right side
289,449.12x = 67,345,801,104.13 - Step 5: Solve for x
x = 67,345,801,104.13/289,449.12 - Step 6: Final answer
x = 232,668.87
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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.