Finding the Fourth Proportional to 240,146.91, 331,393.26 and 138,187.92
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Solution
The fourth proportional to 240,146.91, 331,393.26 and 138,187.92 is: 190,693.88
Step by Step Solution
- Step 1: Write the proportion equation
240,146.91 : 331,393.26 = 138,187.92 : x - Step 2: Convert to fraction form
240,146.91/331,393.26 = 138,187.92/x - Step 3: Cross multiply
240,146.91x = 331,393.26 × 138,187.92 - Step 4: Simplify right side
240,146.91x = 45,794,545,301.42 - Step 5: Solve for x
x = 45,794,545,301.42/240,146.91 - Step 6: Final answer
x = 190,693.88
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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.