Finding the Fourth Proportional to 290,798.15, 401,270.84 and 161,715.71
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Solution
The fourth proportional to 290,798.15, 401,270.84 and 161,715.71 is: 223,150.65
Step by Step Solution
- Step 1: Write the proportion equation
290,798.15 : 401,270.84 = 161,715.71 : x - Step 2: Convert to fraction form
290,798.15/401,270.84 = 161,715.71/x - Step 3: Cross multiply
290,798.15x = 401,270.84 × 161,715.71 - Step 4: Simplify right side
290,798.15x = 64,891,795,977.96 - Step 5: Solve for x
x = 64,891,795,977.96/290,798.15 - Step 6: Final answer
x = 223,150.65
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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.