Finding the Fourth Proportional to 289,299.97, 399,229.50 and 161,980.12
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Solution
The fourth proportional to 289,299.97, 399,229.50 and 161,980.12 is: 223,530.07
Step by Step Solution
- Step 1: Write the proportion equation
289,299.97 : 399,229.50 = 161,980.12 : x - Step 2: Convert to fraction form
289,299.97/399,229.50 = 161,980.12/x - Step 3: Cross multiply
289,299.97x = 399,229.50 × 161,980.12 - Step 4: Simplify right side
289,299.97x = 64,667,242,317.54 - Step 5: Solve for x
x = 64,667,242,317.54/289,299.97 - Step 6: Final answer
x = 223,530.07
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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.