Finding the Fourth Proportional to 245,104.95, 338,215.11 and 136,208.75
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Solution
The fourth proportional to 245,104.95, 338,215.11 and 136,208.75 is: 187,951.56
Step by Step Solution
- Step 1: Write the proportion equation
245,104.95 : 338,215.11 = 136,208.75 : x - Step 2: Convert to fraction form
245,104.95/338,215.11 = 136,208.75/x - Step 3: Cross multiply
245,104.95x = 338,215.11 × 136,208.75 - Step 4: Simplify right side
245,104.95x = 46,067,857,731.97 - Step 5: Solve for x
x = 46,067,857,731.97/245,104.95 - Step 6: Final answer
x = 187,951.56
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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.