Finding the Fourth Proportional to 389,780.26, 538,060.84 and 236,867.65
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Solution
The fourth proportional to 389,780.26, 538,060.84 and 236,867.65 is: 326,977.07
Step by Step Solution
- Step 1: Write the proportion equation
389,780.26 : 538,060.84 = 236,867.65 : x - Step 2: Convert to fraction form
389,780.26/538,060.84 = 236,867.65/x - Step 3: Cross multiply
389,780.26x = 538,060.84 × 236,867.65 - Step 4: Simplify right side
389,780.26x = 127,449,206,727.83 - Step 5: Solve for x
x = 127,449,206,727.83/389,780.26 - Step 6: Final answer
x = 326,977.07
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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.