Finding the Fourth Proportional to 240,296.20, 331,615.74 and 131,406.94
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Solution
The fourth proportional to 240,296.20, 331,615.74 and 131,406.94 is: 181,345.40
Step by Step Solution
- Step 1: Write the proportion equation
240,296.20 : 331,615.74 = 131,406.94 : x - Step 2: Convert to fraction form
240,296.20/331,615.74 = 131,406.94/x - Step 3: Cross multiply
240,296.20x = 331,615.74 × 131,406.94 - Step 4: Simplify right side
240,296.20x = 43,576,609,649.24 - Step 5: Solve for x
x = 43,576,609,649.24/240,296.20 - Step 6: Final answer
x = 181,345.40
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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.