Finding the Fourth Proportional to 437,808.36, 656,749.80 and 138,208.80
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Solution
The fourth proportional to 437,808.36, 656,749.80 and 138,208.80 is: 207,324.96
Step by Step Solution
- Step 1: Write the proportion equation
437,808.36 : 656,749.80 = 138,208.80 : x - Step 2: Convert to fraction form
437,808.36/656,749.80 = 138,208.80/x - Step 3: Cross multiply
437,808.36x = 656,749.80 × 138,208.80 - Step 4: Simplify right side
437,808.36x = 90,768,601,758.24 - Step 5: Solve for x
x = 90,768,601,758.24/437,808.36 - Step 6: Final answer
x = 207,324.96
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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.