Finding the Fourth Proportional to 213,067.86, 319,518.72 and 79,875.44
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Solution
The fourth proportional to 213,067.86, 319,518.72 and 79,875.44 is: 119,782.02
Step by Step Solution
- Step 1: Write the proportion equation
213,067.86 : 319,518.72 = 79,875.44 : x - Step 2: Convert to fraction form
213,067.86/319,518.72 = 79,875.44/x - Step 3: Cross multiply
213,067.86x = 319,518.72 × 79,875.44 - Step 4: Simplify right side
213,067.86x = 25,521,698,348.24 - Step 5: Solve for x
x = 25,521,698,348.24/213,067.86 - Step 6: Final answer
x = 119,782.02
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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.