Finding the Fourth Proportional to 239,162.25, 330,031.76 and 131,729.99
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Solution
The fourth proportional to 239,162.25, 330,031.76 and 131,729.99 is: 181,780.69
Step by Step Solution
- Step 1: Write the proportion equation
239,162.25 : 330,031.76 = 131,729.99 : x - Step 2: Convert to fraction form
239,162.25/330,031.76 = 131,729.99/x - Step 3: Cross multiply
239,162.25x = 330,031.76 × 131,729.99 - Step 4: Simplify right side
239,162.25x = 43,475,078,135.67 - Step 5: Solve for x
x = 43,475,078,135.67/239,162.25 - Step 6: Final answer
x = 181,780.69
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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.