Finding the Fourth Proportional to 290,263.92, 400,552.52 and 161,209.05
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Solution
The fourth proportional to 290,263.92, 400,552.52 and 161,209.05 is: 222,461.99
Step by Step Solution
- Step 1: Write the proportion equation
290,263.92 : 400,552.52 = 161,209.05 : x - Step 2: Convert to fraction form
290,263.92/400,552.52 = 161,209.05/x - Step 3: Cross multiply
290,263.92x = 400,552.52 × 161,209.05 - Step 4: Simplify right side
290,263.92x = 64,572,690,418.26 - Step 5: Solve for x
x = 64,572,690,418.26/290,263.92 - Step 6: Final answer
x = 222,461.99
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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.