Finding the Fourth Proportional to 290,961.41, 401,522.87 and 163,637.00
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Solution
The fourth proportional to 290,961.41, 401,522.87 and 163,637.00 is: 225,816.88
Step by Step Solution
- Step 1: Write the proportion equation
290,961.41 : 401,522.87 = 163,637.00 : x - Step 2: Convert to fraction form
290,961.41/401,522.87 = 163,637.00/x - Step 3: Cross multiply
290,961.41x = 401,522.87 × 163,637.00 - Step 4: Simplify right side
290,961.41x = 65,703,996,279.67 - Step 5: Solve for x
x = 65,703,996,279.67/290,961.41 - Step 6: Final answer
x = 225,816.88
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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.