Finding the Fourth Proportional to 248,658.30, 372,987.12 and 115,465.74
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Solution
The fourth proportional to 248,658.30, 372,987.12 and 115,465.74 is: 173,198.46
Step by Step Solution
- Step 1: Write the proportion equation
248,658.30 : 372,987.12 = 115,465.74 : x - Step 2: Convert to fraction form
248,658.30/372,987.12 = 115,465.74/x - Step 3: Cross multiply
248,658.30x = 372,987.12 × 115,465.74 - Step 4: Simplify right side
248,658.30x = 43,067,233,821.27 - Step 5: Solve for x
x = 43,067,233,821.27/248,658.30 - Step 6: Final answer
x = 173,198.46
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.