Finding the Fourth Proportional to 214,130.05, 320,844.65 and 129,634.11
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Solution
The fourth proportional to 214,130.05, 320,844.65 and 129,634.11 is: 194,239.02
Step by Step Solution
- Step 1: Write the proportion equation
214,130.05 : 320,844.65 = 129,634.11 : x - Step 2: Convert to fraction form
214,130.05/320,844.65 = 129,634.11/x - Step 3: Cross multiply
214,130.05x = 320,844.65 × 129,634.11 - Step 4: Simplify right side
214,130.05x = 41,592,410,817.10 - Step 5: Solve for x
x = 41,592,410,817.10/214,130.05 - Step 6: Final answer
x = 194,239.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.